Question

Prove that:
(1-sin²Φ)tan²Φ=sin²¤

Answer 1

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We know that:-

Cos²∅=1-Sin²∅

Tan²∅=Sin²∅/Cos²∅

ACCORDING TO THE QUESTION;

[Left hand side]

(1-Sin²∅)Tan² ∅

Cos²∅× Sin²∅/Cos²∅

Sin²∅[Answer]

Cos²∅ [Cancelled]

LHS=RHS

Proved>>>>>>>>

Answer 2

the answer is in this picture.