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GATE ECE 2005 | Question: 81b
Statement for Linked Answer Questions $81 a$ and $81 b$: Consider an $8085$ microprocessor system If in addition following code exists from $019 \mathrm{H}$ onwards, $\text{ORI 40 H}$ $\text{ADD M}$ What will be the result in the accumulator after the last instruction is executed? $40 \; \mathrm{H}$ $20 \; \mathrm{H}$ $60 \; \mathrm{H}$ $42 \; \mathrm{H}$
Statement for Linked Answer Questions $81 a$ and $81 b$:Consider an $8085$ microprocessor systemIf in addition following code exists from $019 \mathrm{H}$ onwards,$\text{...
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GATE ECE 2005 | Question: 82b
Statement for Linked Answer Questions $82a$ and $82b:$ The dopen loop transfer function of a unity feedback system is given by \[\mathrm{G}(s)=\frac{3 e^{-2}}{s(s+2)}\] Based on the above results, the gain and phase margins of the system will be $-7.09$ ... $87.5^{\circ}$ $7.09 \mathrm{~dB}$ and $-87.5^{\circ}$ $-7.09 \mathrm{~dB}$ and $-87.5^{\circ}$
Statement for Linked Answer Questions $82a$ and $82b:$The dopen loop transfer function of a unity feedback system is given by\[\mathrm{G}(s)=\frac{3 e^{-2}}{s(s+2)}\]Base...
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GATE ECE 2005 | Question: 83b
Statement for Linked Answer Questions 83a and 83b Asymmetric three-level midtread quantizer is to be designed assuming equiprobable occurence of all quantization levels. The quantization noise power for the quantization region between $-a$ and $+a$ in the figure is $\frac{4}{81}$ $\frac{1}{9}$ $\frac{5}{81}$ $\frac{2}{81}$
Statement for Linked Answer Questions 83a and 83bAsymmetric three-level midtread quantizer is to be designed assuming equiprobable occurence of all quantization levels.Th...
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GATE ECE 2005 | Question: 84b
Statement of Linked Answer Questions $84a$ and $84b$ Voltage standing wave pattern in a lossless transmission line with characteristic impedance $50 \mathrm{W}$ and a resistive load is shown in the figure. The reflection coefficient is given by $-0.6$ $-1$ $0.6$ $0$
Statement of Linked Answer Questions $84a$ and $84b$Voltage standing wave pattern in a lossless transmission line with characteristic impedance $50 \mathrm{W}$ and a resi...
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GATE ECE 2005 | Question: 85b
Statement of Linked Answer Questions $85 a$ and $85b$ A sequence $x(n)$ has non-zero values as shown in the figure The Fourier transform of $y(2 n)$ will be $e^{-j2w} [\cos 4 w+2 \cos 2 w+2]$ $[\cos 2 w+2 \cos w+2]$ $e^{-jw} [\cos 2 w+2 \cos w+2]$ $e^{-j2w} [\cos 2 w+2 \cos w+2]$
Statement of Linked Answer Questions $85 a$ and $85b$A sequence $x(n)$ has non-zero values as shown in the figureThe Fourier transform of $y(2 n)$ will be$e^{-j2w} [\cos ...
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GATE ECE 2005 | Question: 1
The following differential equation has \[3 \frac{d^{2} y}{d t^{2}}+4\left(\frac{d y}{d t}\right)^{3}+y^{2}+2=x\] degree $=2$, order $=1$ degree $=3$, order $=2$ degree $=4$, order $=3$ degree $=2$, order $=3$
The following differential equation has\[3 \frac{d^{2} y}{d t^{2}}+4\left(\frac{d y}{d t}\right)^{3}+y^{2}+2=x\]degree $=2$, order $=1$degree $=3$, order $=2$degree $=4$,...
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Sep 22, 2022
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GATE ECE 2005 | Question: 2
Choose the function $f(t); – \infty < 1 < \infty,$ for which a Fourier series cannot be defined. $3 \sin (25 t)$ $4 \cos (20 t+3)+2 \sin (710 t)$ $\exp (-|t|) \sin (25 t)$ $1$
Choose the function $f(t); – \infty < 1 < \infty,$ for which a Fourier series cannot be defined.$3 \sin (25 t)$$4 \cos (20 t+3)+2 \sin (710 t)$$\exp (-|t|) \sin (25 t)$...
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GATE ECE 2005 | Question: 3
A fair dice is rolled twice. The probability that an odd number will follow an even number is $\frac{1}{2}$ $\frac{1}{6}$ $\frac{1}{3}$ $\frac{1}{4}$
A fair dice is rolled twice. The probability that an odd number will follow an even number is$\frac{1}{2}$$\frac{1}{6}$$\frac{1}{3}$$\frac{1}{4}$
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GATE ECE 2005 | Question: 4
A solution of the following differential equation is given by \[\frac{d^{2} y}{d x^{2}}-5 \frac{d y}{d x}+6 y=0\] $y=e^{2 x}+e^{-3 x}$ $y=e^{2 x}+e^{3 x}$ $y=e^{-2 x}+e^{3 x}$ $y=e^{-2 x}+e^{-3 x}$
A solution of the following differential equation is given by\[\frac{d^{2} y}{d x^{2}}-5 \frac{d y}{d x}+6 y=0\]$y=e^{2 x}+e^{-3 x}$$y=e^{2 x}+e^{3 x}$$y=e^{-2 x}+e^{3 x}...
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GATE ECE 2005 | Question: 5
The function $x(t)$ is shown in the figure. Even and odd parts of a unit-step function $u(t)$ are respectively, $\frac{1}{2}, \frac{1}{2} x(t)$ $-\frac{1}{2}, \frac{1}{2} x(t)$ $\frac{1}{2},-\frac{1}{2} x(t)$ $-\frac{1}{2},-\frac{1}{2} x(t)$
The function $x(t)$ is shown in the figure. Even and odd parts of a unit-step function $u(t)$ are respectively,$\frac{1}{2}, \frac{1}{2} x(t)$$-\frac{1}{2}, \frac{1}{2} x...
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GATE ECE 2005 | Question: 6
The region of convergence of $Z$-transform of the sequence $\left(\frac{5}{6}\right)^{n} u(n)-\left(\frac{6}{5}\right)^{n} u(-n-1)$ must be $|z|<\frac{5}{6}$ $|z|>\frac{6}{5}$ $\frac{5}{6}<|z|<\frac{6}{5}$ $\frac{6}{5}<|z|<\infty$
The region of convergence of $Z$-transform of the sequence$\left(\frac{5}{6}\right)^{n} u(n)-\left(\frac{6}{5}\right)^{n} u(-n-1)$ must be$|z|<\frac{5}{6}$$|z|>\frac{6}{5...
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GATE ECE 2005 | Question: 7
The condition on $\mathrm{R}, \mathrm{L}$ and $\mathrm{C}$ such that the step response $y(t)$ in the figure has no oscillations, is $\mathrm{R} \geq \frac{1}{2} \sqrt{\frac{\mathrm{L}}{\mathrm{C}}}$ $\mathrm{R} \geq \sqrt{\frac{\mathrm{L}}{\mathrm{C}}}$ $\mathrm{R} \geq 2 \sqrt{\frac{\mathrm{L}}{\mathrm{C}}}$ $ \mathrm{R}=\frac{1}{\sqrt{\mathrm{LC}}}$
The condition on $\mathrm{R}, \mathrm{L}$ and $\mathrm{C}$ such that the step response $y(t)$ in the figure has no oscillations, is$\mathrm{R} \geq \frac{1}{2} \sqrt{\fra...
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GATE ECE 2005 | Question: 8
The $\text{ABCD}$ parameters of an ideal $n: 1$ transformer shown in the figure are $\left[\begin{array}{ll}n & 0 \\ 0 & \mathrm{X}\end{array}\right]$. The value of $X$ will be $n$ $\frac{1}{n}$ $n^{2}$ $\frac{1}{n^{2}}$
The $\text{ABCD}$ parameters of an ideal $n: 1$ transformer shown in the figure are $\left[\begin{array}{ll}n & 0 \\ 0 & \mathrm{X}\end{array}\right]$. The value of $X$ w...
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GATE ECE 2005 | Question: 9
In a series $\mathrm{RLC}$ circuit, $\mathrm{R}=2 \; \mathrm{k} \Omega, \mathrm{L}=1 \; \mathrm{H}$, and $\mathrm{C} \frac{1}{400}=\mu \mathrm{F}$. The resonant frequency is $2 \times 10^{4} \mathrm{~Hz}$ $\frac{1}{\pi} \times 10^{4} \mathrm{~Hz}$ $10^{4} \mathrm{~Hz}$ $2 \pi \times 10^{4} \mathrm{~Hz}$
In a series $\mathrm{RLC}$ circuit, $\mathrm{R}=2 \; \mathrm{k} \Omega, \mathrm{L}=1 \; \mathrm{H}$, and $\mathrm{C} \frac{1}{400}=\mu \mathrm{F}$. The resonant frequency...
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GATE ECE 2005 | Question: 10
The maximum power that can be transferred to the load resistor $R_{L}$ from the voltage source in the figure is $1 \mathrm{~W}$ $10 \mathrm{~W}$ $0.25 \mathrm{~W}$ $0.5 \mathrm{~W}$
The maximum power that can be transferred to the load resistor $R_{L}$ from the voltage source in the figure is$1 \mathrm{~W}$$10 \mathrm{~W}$$0.25 \mathrm{~W}$$0.5 \math...
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GATE ECE 2005 | Question: 11
The bandgap of Silicon at room temperature is $1.3 \; \mathrm{eV}$ $0.7 \; \mathrm{eV}$ $1.1 \; \mathrm{eV}$ $1.4 \; \mathrm{eV}$
The bandgap of Silicon at room temperature is$1.3 \; \mathrm{eV}$$0.7 \; \mathrm{eV}$$1.1 \; \mathrm{eV}$$1.4 \; \mathrm{eV}$
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GATE ECE 2005 | Question: 12
A Silicon PN junction at a temperature of $20^{\circ} \mathrm{C}$ has a reverse saturation current of $10$ picoAmperes $(\mathrm{pA})$. The reverse saturation current at $40^{\circ} \mathrm{C}$ for the same bias is approximately $30 \; \mathrm{pA}$. $40 \; \mathrm{pA}$. $50 \; \mathrm{pA}$ $60 \; \mathrm{pA}$.
A Silicon PN junction at a temperature of $20^{\circ} \mathrm{C}$ has a reverse saturation current of $10$ picoAmperes $(\mathrm{pA})$. The reverse saturation current at ...
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GATE ECE 2005 | Question: 13
The primary reason for the widespread use of Silicon in semiconductor device technology is aboundance of Silicon on the surface of the Earth. larger bandgap of Silicon in comparison to Germanium. favorable properties of Silicon-dioxide $\left(\mathrm{SiO}_{2}\right)$. lower melting point.
The primary reason for the widespread use of Silicon in semiconductor device technology isaboundance of Silicon on the surface of the Earth.larger bandgap of Silicon in c...
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GATE ECE 2005 | Question: 14
The effect of current shunt feedback in an amplifier is to increase the input resistance and decrease the output resistance. increase both input and output resistances. decrease both input and output resistances. decrease the input resistance and increase the output resistance.
The effect of current shunt feedback in an amplifier is toincrease the input resistance and decrease the output resistance.increase both input and output resistances.decr...
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GATE ECE 2005 | Question: 15
The input resistance $\text{R}_{\mathrm{i}}$ of the amplifier shown in the figure is $\frac{30}{4} \; \mathrm{k} \Omega$ $10 \; \mathrm{k} \Omega$ $40 \; \mathrm{k} \Omega$ infiinte
The input resistance $\text{R}_{\mathrm{i}}$ of the amplifier shown in the figure is$\frac{30}{4} \; \mathrm{k} \Omega$$10 \; \mathrm{k} \Omega$$40 \; \mathrm{k} \Omega$i...
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GATE ECE 2005 | Question: 16
The first and the last critical frequency of an $\text{RC}$-driving point impedance function must respectively be a zero and a pole a zero and a zero a pole and a pole a pole and a zero
The first and the last critical frequency of an $\text{RC}$-driving point impedance function must respectively bea zero and a polea zero and a zeroa pole and a polea pole...
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GATE ECE 2005 | Question: 17
The cascode amplifier is a multistage configuration of $\mathrm{CC}-\mathrm{CB}$ $\mathrm{CE}-\mathrm{CB}$ $\mathrm{CB}-\mathrm{CC}$ $\mathrm{CE}-\mathrm{CC}$
The cascode amplifier is a multistage configuration of$\mathrm{CC}-\mathrm{CB}$$\mathrm{CE}-\mathrm{CB}$$\mathrm{CB}-\mathrm{CC}$$\mathrm{CE}-\mathrm{CC}$
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GATE ECE 2005 | Question: 18
Decimal $43$ in Hexadecimal and $\text{BCD}$ number system is respectively $\text{B2, 01000011}$ $\text{2B, 01000011}$ $\text{2B, 00110100}$ $\text{B2, 0100 0100}$
Decimal $43$ in Hexadecimal and $\text{BCD}$ number system is respectively$\text{B2, 01000011}$$\text{2B, 01000011}$$\text{2B, 00110100}$$\text{B2, 0100 0100}$
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GATE ECE 2005 | Question: 19
The Boolean function $f$ implemented in the figure using two input multiplexers is $\mathrm{A} \overline{\mathrm{B}} \text{C}+\mathrm{A} \overline{\mathrm{B}} \overline{\mathrm{C}}$ $\mathrm{ABC}+\mathrm{A} \overline{\mathrm{B}} \overline{\mathrm{C}}$ ... $\overline{\mathrm{A}} \overline{\mathrm{B}} \mathrm{C}+\overline{\mathrm{A}} \mathrm{B} \overline{\mathrm{C}}$
The Boolean function $f$ implemented in the figure using two input multiplexers is$\mathrm{A} \overline{\mathrm{B}} \text{C}+\mathrm{A} \overline{\mathrm{B}} \overline{\m...
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GATE ECE 2005 | Question: 20
Which of the following can be impulse response of a casual system?
Which of the following can be impulse response of a casual system?
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GATE ECE 2005 | Question: 21
Let $x(n)=\left(\frac{1}{2}\right)^{n} u(n), y(n)=x^{2}(n)$ and $\mathrm{Y}\left(e^{j i e}\right)$ be the Fourier transform of $y(n)$. Then $Y\left(e^{j i e}\right)$ is $\frac{1}{4}$ $2$ $4$ $\frac{4}{3}$
Let $x(n)=\left(\frac{1}{2}\right)^{n} u(n), y(n)=x^{2}(n)$ and $\mathrm{Y}\left(e^{j i e}\right)$ be the Fourier transform of $y(n)$. Then $Y\left(e^{j i e}\right)$ is$\...
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GATE ECE 2005 | Question: 22
Find the correct match between group $1$ and group $2.$ ... $\text{P - X, Q - W, R - Z, S - Y,}$ $\text{P - Y, Q - Z, R - W, S - X,}$
Find the correct match between group $1$ and group $2.$Group I$\begin{array}{l}\mathrm{P}-\{1+k m(t)\} \mathrm{A} \sin \left(\omega_{c} t\right) \\\mathrm{Q}-k m(t) \math...
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GATE ECE 2005 | Question: 23
The power in the signal $s(t)=8 \cos \left(20 \pi t-\frac{\pi}{2}\right)+$ $4 \sin (15 \pi t)$ is $40$ $41$ $42$ $82$
The power in the signal $s(t)=8 \cos \left(20 \pi t-\frac{\pi}{2}\right)+$ $4 \sin (15 \pi t)$ is$40$$41$$42$$82$
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GATE ECE 2005 | Question: 24
Which of the following analog modulation scheme requires the minimum transmitted power and minimum channel bandwidth? VSB DSB-SC SSB AM
Which of the following analog modulation scheme requires the minimum transmitted power and minimum channel bandwidth?VSBDSB-SCSSBAM
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GATE ECE 2005 | Question: 25
A linear system is equivalently represented by two sets of state equations. \[\dot{X}=\mathrm{AX}+\mathrm{BU} \text { and } \dot{W}=\mathrm{CW}+\mathrm{DU} \text {. }\] The eigenvalues of the representations are also computed as $\{\lambda\}$ and $\{\mu\}$. Which one of the ... $X \neq W$ $[\lambda] \neq[\mu]$ and $X=W$ $[\lambda] \neq[\mu]$ and $X \neq W$
A linear system is equivalently represented by two sets of state equations.\[\dot{X}=\mathrm{AX}+\mathrm{BU} \text { and } \dot{W}=\mathrm{CW}+\mathrm{DU} \text {. }\]The...
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GATE ECE 2005 | Question: 26
Which one of the following polar diagrams corresponds to a lag network?
Which one of the following polar diagrams corresponds to a lag network?
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GATE ECE 2005 | Question: 27
Despite the presence of negative feedback, control systems still have problems of instability because the components used have nonlinearities. dynamic equations of the subsystems are not known exactly. mathematical analysis involves approximations. system has large negative phase angle at high frequencies.
Despite the presence of negative feedback, control systems still have problems of instability because thecomponents used have nonlinearities.dynamic equations of the subs...
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GATE ECE 2005 | Question: 28
The magnetic field intensity vector of a plane wave is given by $\overline{\mathrm{H}}(x, y, z, t)=10 \sin \left(50000 t+0.004 x+30 \; \hat{a}_{y}\right)$, where $\hat{a}_{y}$ denotes the unit vector in $y$ ... $-1.25 \times 10^{7} \mathrm{~m} / \mathrm{s}$. $3 \times 10^{8} \mathrm{~m} / \mathrm{s}$.
The magnetic field intensity vector of a plane wave is given by$\overline{\mathrm{H}}(x, y, z, t)=10 \sin \left(50000 t+0.004 x+30 \; \hat{a}_{y}\right)$,where $\hat{a}_{...
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GATE ECE 2005 | Question: 29
Many circles are drawn in a Smith chart used for transmission line calculations. The circles shown in the figure represent unit circles. constant resistance circles. constant reactance circles. constant reflection coefficient circles.
Many circles are drawn in a Smith chart used for transmission line calculations. The circles shown in the figure representunit circles.constant resistance circles.constan...
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GATE ECE 2005 | Question: 30
Refractive index of glass is $1.5.$ Find the wavelength of a beam of light with a frequency of $10^{14} \mathrm{~Hz}$ in glass. Assume velocity of light is $3 \times 10^{8} \mathrm{~m} / \mathrm{s}$ in vacuum. $3 \; \mu \mathrm{m}$ $3 \mathrm{~mm}$ $2 \; \mu \mathrm{m}$ $1 \; \mu \mathrm{m}$
Refractive index of glass is $1.5.$ Find the wavelength of a beam of light with a frequency of $10^{14} \mathrm{~Hz}$ in glass. Assume velocity of light is $3 \times 10^{...
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GATE ECE 2005 | Question: 31
In what range should $\operatorname{Re}(s)$ remain so that the Laplace transform of the function $e^{(n+2)t+5}$ exits? $\operatorname{Re}(s)>a+2$ $\operatorname{Re}(\mathrm{s})>a+7$ $\operatorname{Re}(s)<2$ $\operatorname{Re}(s)>a+5$
In what range should $\operatorname{Re}(s)$ remain so that the Laplace transform of the function $e^{(n+2)t+5}$ exits?$\operatorname{Re}(s)>a+2$$\operatorname{Re}(\mathrm...
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GATE ECE 2005 | Question: 32
Given the matrix $\left[\begin{array}{cc}-4 & 2 \\ 4 & 3\end{array}\right]$, the eigenvector is $\left[\begin{array}{l}3 \\ 2\end{array}\right]$ $\left[\begin{array}{l}4 \\ 3\end{array}\right]$ $\left[\begin{array}{c}2 \\ -1\end{array}\right]$ $\left[\begin{array}{c}-2 \\ 1\end{array}\right]$
Given the matrix $\left[\begin{array}{cc}-4 & 2 \\ 4 & 3\end{array}\right]$, the eigenvector is$\left[\begin{array}{l}3 \\ 2\end{array}\right]$$\left[\begin{array}{l}4 \\...
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GATE ECE 2005 | Question: 33
Let, $\mathrm{A}=\left[\begin{array}{cc}2 & -0.1 \\ 0 & 3\end{array}\right]$ and $\mathrm{A}^{-1}=\left[\begin{array}{ll}\frac{1}{2} & \mathrm{a} \\ 0 & \mathrm{~b}\end{array}\right]$ Then $(a+b)=$ $\frac{7}{20}$ $\frac{3}{20}$ $\frac{19}{60}$ $\frac{11}{20}$
Let, $\mathrm{A}=\left[\begin{array}{cc}2 & -0.1 \\ 0 & 3\end{array}\right]$ and $\mathrm{A}^{-1}=\left[\begin{array}{ll}\frac{1}{2} & \mathrm{a} \\ 0 & \mathrm{~b}\end{a...
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GATE ECE 2005 | Question: 34
The value of the integral $\text{I}=\frac{1}{\sqrt{2 \pi}} \int_{0}^{\infty} \exp \left(-\frac{x^{2}}{8}\right)$ $d x$ is $1$ $\pi$ $2$ $2 \pi$
The value of the integral $\text{I}=\frac{1}{\sqrt{2 \pi}} \int_{0}^{\infty} \exp \left(-\frac{x^{2}}{8}\right)$ $d x$ is$1$$\pi$$2$$2 \pi$
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GATE ECE 2005 | Question: 35
The derivative of the symmetric function drawn in given figure will look like
The derivative of the symmetric function drawn in given figure will look like
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