simplify (1+tan²theta) sin²theta
Answers
Answer:
so the ans is tan square thetha
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Answer:
Step-by-step explanation:
Given That,
( 1 + tan^2 θ)sin^2 θ = ??
= (sec^2 θ) x sin^2 θ ( ∵ 1 + tan^2θ = sec^2θ)
= 1/cos^2 θ x sin^2 θ
= sin^2 θ / cos^2 θ
= tan^2 θ
(Or)
( 1 + tan^2 θ)sin^2 θ = ??
= (sec^2 θ)(1 - cos^2 θ)
= (sec^2 θ - sec^2 θ x cos^2 θ)
= ( sec^2 θ - 1/cos^2 θ x cos^2 θ)
= (sec^2 θ - 1 )
= tan^2 θ