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				| 1. | If h(n) is the real valued impulse response sequence of an LTI system, then what is the imaginary part of Fourier transform of the impulse response? | 
| A. | ( sum_{k=- }^ h(k) sin u2061 k ) | 
| B. | ( sum_{k=- }^ h(k) sin u2061 k ) | 
| C. | ( sum_{k=- }^ h(k) cos u2061 k ) | 
| D. | ( sum_{k=- }^ h(k) cos u2061 k ) | 
| Answer» B. ( sum_{k=- }^ h(k) sin u2061 k ) | |