1.

What is the formula for Parseval s relation in Fourier series expansion?

A. ( int_{-l}^l (f(x))^2 dx=l[ frac{a_0^2}{2}+ _{n=1}^ (a_n^2+b_n^2 ) ] )
B. ( int_{-l}^l (f(x))^2 dx=l[ frac{a_0^2}{2}+ _{n=1}^ (a_n^2 ) ] )
C. ( int_{-l}^l (f(x))^2 dx=l 2 [ frac{a_0^2}{2}+ _{n=1}^ (a_n^2+b_n^2 ) ] )
D. ( l int_{-l}^l (f(x))^2 dx=[ frac{a_0^2}{2}+ _{n=1}^ (a_n^2+b_n^2 ) ] )
Answer» B. ( int_{-l}^l (f(x))^2 dx=l[ frac{a_0^2}{2}+ _{n=1}^ (a_n^2 ) ] )


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