continuous and discrete homework

4. A linear time-invariant system has the unit impulse response given below.

h(t) = 2( Sin~~1tt) )c0S(71tt)

(10%) Use Fourier Transform to determine the system output due to the input f(t)=cos(21tt)+ sin(6m).

w

5

H(W)

I

-1rr -]1r - '1\ ""'1\ 7-rr q1f