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GATE Mechanical 2022 Set 2 | Question: 1

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$F(t)$ is a periodic square wave function as shown. It takes only two values, $4$ and $0$, and stays at each of these values for $1$ second before changing. What is the constant term in the Fourier series expansion of $F(t)$?

 

  1. $1$
  2. $2$
  3. $3$
  4. $4$

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