(1) overlap-add method: $$ \begin{array}{l}{x(n)=2,2,1,1,2} \\ {h(n)=1,3}\end{array} $$ determine output y(n) using overlap-add method of convolution.

$\left.\begin{array}{l}{x_{1}(n)=2,2,1,0} \\ {x_{2}(n)=1,1,2,0}\end{array},\right\}{2}$ sequence

$h(n)=1,3,0,0$

No . of overlap =No. of samples in $h(n)$ ----1

$y_{1}(n)=x_{1}(n)(N) h(n)$

$\left[\begin{array}{llll}{1} & {0} & {0} & {3} \\ {3} & {1} & {0} & {0} \\ {0} …