I need to check my answers for parts (a) and (c);

a) I got q(t) = p(t)cos(5pit)

c) i got y(t) as a rectangle with amplitude 1 from -pi to pi. So, y(t) = 1/8 f(t)

Am I correct for both parts;

enter image description here


(a) looks good to me.

for (c), keep in mind that \$cos x = \frac{e^{ix} + e^{-ix}}2\$, so multiplying with a real valued sine wave will give you mirror images.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.