4:30 10 f Q7.docx : Q-Write a program the signals: X(t) = 3u(1-t); Z(t)=X(-); Z.(t)= 2 Z(t) Y(n)= 3nu(n); Y, (n) =2 Y(n); Y:(n) = Y(-n) And display as shown this Figure: X:(t) Y(n) Yin) Y.In) z(t) Y.(n) z(t) YA(n) o