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1. |
If x(n)=xR(n)+jxI(n) is a complex sequence whose Fourier transform is given as X(ω)=XR(ω)+jXI(ω), then what is the value of xI(n)? |
A. | \(\frac{1}{2π} \int_0^{2π}\)[XR(ω) sinωn+ XI(ω) cosωn] dω |
B. | \(\int_0^{2π}\)[XR(ω) sinωn+ XI(ω) cosωn] dω |
C. | \(\frac{1}{2π} \int_0^{2π}\)[XR(ω) sinωn – XI(ω) cosωn] dω |
D. | None of the mentioned |
Answer» B. \(\int_0^{2π}\)[XR(ω) sinωn+ XI(ω) cosωn] dω | |