Question

(cosecq+sinq)(cosecq-sinq)=cot^2+cos^2​

Answer 1

${ \csc}^{2} q - {\sin}^{2} q = {\cot}^{2} q + {\cos}^{2} q$

${ \csc}^{2} q - {\cot}^{2} q= {\cos}^{2} q + {\sin}^{2} q$

1=1

proved