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1. |
The Fourier transform of the signal sin(2 t) e-t u (t) is ____________ |
A. | ( frac{1}{2j} left( frac{1}{1+j( -2 )} + frac{1}{1+j( +2 )} right) ) |
B. | ( frac{1}{2j} left( frac{1}{1+j( -2 )} frac{1}{1+j( +2 )} right) ) |
C. | ( frac{1}{2j} left( frac{1}{1+j( +2 )} frac{1}{1+j( -2 )} right) ) |
D. | ( frac{1}{j} left( frac{1}{1+j( +2 )} frac{1}{1+j( -2 )} right) ) |
Answer» C. ( frac{1}{2j} left( frac{1}{1+j( +2 )} frac{1}{1+j( -2 )} right) ) | |