$($Answer must be in your own hand$-$writing$)$

$($a$)$ State the contrapositive of each of the following statements:

$($i$)$ Jamuna will go swimming unless the water is too cold.

$($ii$)$ When I stay up late, it is necessary that I sleep until noon.

$($b$)$ Show that $p^{{?}^{?}}$notq is logically equivalent to not$(pq)$

$($c$)$ Construct truth table for $(pharrnotq)o+$notp