Question

if qcosA= square root (q- p) proof that qsinq =p​

Answer 1

$q \cos( \alpha ) = \sqrt{q - p} \\ = > {q \cos( \alpha )}^{2} = q - p \\ = > p = q(1 - { \cos}^{2} \alpha ) \\ = > p = q \sin {}^{2} \alpha$