Consider a periodic signal x(t) as shown below:It has a Fourier series representation\(x\left( t \right) = \mathop \sum \limits_{k = - \infty }^\infty {a_k}{e^{j\left( {\frac{{2\pi }}{T}} \right)kt}}\)Which one of the following statements is TRUE?

ak = 0, for k even integer and T = 4

ak = 0, for k odd integer and T = 2

ak = 0, for k even integer and T = 2

ak = 0, for k odd integer and T = 4

Consider a periodic signal x(t) as shown below:It has a Fourier series

1.	Consider a periodic signal x(t) as shown below:It has a Fourier series representation\(x\left( t \right) = \mathop \sum \limits_{k = - \infty }^\infty {a_k}{e^{j\left( {\frac{{2\pi }}{T}} \right)kt}}\)Which one of the following statements is TRUE?
A.	ak = 0, for k odd integer and T = 2
B.	ak = 0, for k even integer and T = 2
C.	ak = 0, for k even integer and T = 4
D.	ak = 0, for k odd integer and T = 4
Answer» C. ak = 0, for k even integer and T = 4

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Consider a periodic signal x(t) as shown below:It has a Fourier series representation\(x\left( t \right) = \mathop \sum \limits_{k = - \infty }^\infty {a_k}{e^{j\left( {\frac{{2\pi }}{T}} \right)kt}}\)Which one of the following statements is TRUE?

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