$1.$ Calculate the steady$-$state error when:

$($a$)()=!$

$",()=0$

$($b$)()=0,()=$ #$

$"$

$($c$)()=!$

$",()=$ #$

$"$

$2.$ Build the above system in SIMULINK and verify the results of your hand

calculations for parts $($a$),($b$)$ and $($c$).$