InterviewSolution
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| 1. |
If . , then [()] is |
| Answer» ⇒ F{Y(t)} = Y(f) = X(f) x sin (t) ⇌ By duality :⇌ sgn + (- f) ⇒ ⇌ jsgn (- f) ∴⇌ - j sgn (f) ∵ sgn(- f) = - sgn(f) ⇒ Y(f) = X(f). [- j sgn(f)]. | |