Question

Plz answer fast (its opt math)

Answer 1

Step-by-step explanation:

Solving Left hand side and using alpha instead of theeta for convenience.

${sin}^{2} \alpha (1 + {tan}^{2} \alpha )$

${sin}^{2} \alpha \times {sec}^{2} \alpha$

${sin}^{2} \alpha \times \frac{1}{ {cos }^{2} \alpha }$

$\frac{ {sin}^{2} \alpha }{ {cos}^{2} \alpha }$

${tan}^{2} \alpha$

L-H-S = R- H - S