Electrical Engineering

Question : z transform homework Solution : We know that Z-transform a causal sequence is given as \[Z\left(a^n\right)=\frac{z}{z-a},\ \left|z\right|>\left|a\right|\] (a) Therfore Z-transform of sequence \[y_n=3^n\] Using a =3 \[Z\left(3^n\right)=\frac{z}{z-3}\ ,\…