Question

if tan2theta +tan4theta=1 then sin2theta=?​

Answer 1

Answer:

tan2θtan4θ=1

We know, if tanA.tanB=1 then, A+B=90

∘

2θ+4θ=90

∘

6θ=90

∘

∴θ=15

∘

Hence, tan3θ=tan45

∘

=1.

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