If (sec θ – tan θ)/ (sec θ + tan θ) = ¼, find sin θ.
Answer :
4 – 4 sin θ = 1 + sin θ
4 – 1 = sin θ + 4 sin θ
⇒ 3 = 5 sin θ
⇒ sin θ = 3/5
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