Register

GATE ECE 2017 Set 1 | Question: 48

• retagged by
663 views
0 0 votes

Which one of the following options correctly describes the locations of the roots of the equation $s^{4}+s^{2}+1=0$ on the complex plane?

  1. Four left half plane(LHP) roots
  2. One right half plane(RHP) root,one LHP root and two roots on the imaginary axis
  3. Two RHP roots and two LHP roots
  4. All four roots are on the imaginary axis

Please log in or register to answer this question.

Answer:
← Previous · GATE ECE 2017 Set 1 ...Next → · GATE ECE 2017 Set 1 ...
← Previous in category · GATE ECE 2017 Set 1 ...Next in category → · GATE ECE 2017 Set 2 ...
Position:
Show:
Voting & Accepting an answer helps improve the community

Related questions

0 0 votes
0 0 answers
369
369 views
admin asked Nov 17, 2017
369 views
GATE ECE 2017 Set 1 | Question: 28
Let $I=\int_{c}\left ( 2zdx+2ydy+2xdx \right )$ where $x,y,z$ are real, and let $C$ be the straight line segment from point $A:(0,2,1)$ to point $B:(4,1,-1)$.The value of...
0 0 votes
0 0 answers
420
420 views
admin asked Nov 23, 2017
420 views
GATE ECE 2017 Set 2 | Question: 4
The residues of a function $$f(z)=\frac1{(z-4)(z+1)^3 }$$are$\frac{-1}{27}$ and $\frac{-1}{125} \\$$\frac{1}{125}$ and $\frac{-1}{125} \\$$\frac{-1}{27}$ and $\frac{1}...
2 2 votes
1 1 answer
874
874 views
Arjun asked Feb 12, 2019
874 views
GATE ECE 2019 | Question: 1
Which one of the following functions is analytic over the entire complex plane?$\ln(z)$$e^{1/z}$$\frac{1}{1-z}$$\cos(z)$
9 9 votes
2 answers 2 answers
1.1k
1.1k views
Lakshman Bhaiya asked May 31, 2019
1,060 views
GATE ECE 2017 Set 1 | GA | Question: 10
A contour line joins locations having the same height above the mean sea level. The following is a contour plot of a geographical region. Contour lines are shown at $25$ ...

Add Synced Question

×