$($b$)$ Determine the linear and circular convolution of the below two sequences: $(6\text{'})$

$6$

$x[n]=\{1,3,2,-4,6\},-1n3$;$h[n]=\{5,4,3,2,1\},-2n2$

$($c$)$ The DTF of a length$-6$ signal is given by

$x[n]=\{(2+j3),(1+j5),(-2+j4),(-1-j3),(2),(3+j)\}$

Without computing $x[n]$ first, determine the DFT of the real part and DFT of the imaginary part of $x[n].(5^{\text{'}})$