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GATE ECE 2010 | Question: 2

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The trigonometric Fourier series for the waveform $f(t)$ shown below contains

  1. only cosine terms and zero value for the $dc$ component
  2. only cosine terms and a positive value for the $dc$ component
  3. only cosine terms and a negative value for the $dc$ component
  4. only sine terms and a negative value for the $dc$ component

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