Question $6(15\%)$ Transform each of the wff in to a DNF$.$ Show your work clearly.

$($a$)Q^{{?}^{?}}$notP$P$

$($b$)(PvvQ{)}^{{?}^{?}}R$

$($c$)(AvvB)(CD)$

Question $7(10\%))$ Transform each of the following wffs in to full DNF$.$ Show your

work clearly.

$($a$)P{Q}^{{?}^{?}}R$

$($b$)(AvvB{)}^{{?}^{?}}(AvvC)$

Question $8(5\%)$ Transform each of the following wffs in to a full CNF$.$ Show your

work clearly.

$($a$)P{Q}^{{?}^{?}}R$

PLease solve step by step