Use the defining equation for the DTFS coefficients to evaluate the DTFS representation of the following signals:

$($a$)x[n]=cos(\frac{6}{17}n+\frac{}{3})$

$($b$)x[n]=2sin(\frac{14}{19}n)+cos(\frac{10}{19}n)+1$

$($c$)+[n+3m]$

$($d$)x[n]$ as depicted in Figure

$($e$)x[n]$ as depicted in Figure

$($a$).$

$($b$).$