Question

if (cos 4 titha) - (sin 4 titha ), find the value of tan 2 titha.​

Answer 1

Answer:

Given,

2 θ and 4 θ are acute and cos2θ=sin4θ

We have, cosθ=sin(90∘−θ)

cos2θ=sin(90∘−2θ)

∴sin(90∘−2θ)=sin4θ

90∘−2θ=4θ

90∘=2θ+4θ

6θ=90∘

θ=15∘

Answer 2

Answer:

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