Trignometry

Quantitative Aptitude (CDS)

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If θ is an acute angle and sinθcosθ = 2cos³θ – 1.5cosθ, then what is sinθ equal to?

$\frac{\sqrt{5}-1}{4}$

$\frac{1-\sqrt{5}}{4}$

$\frac{\sqrt{5}+1}{4}$

$-\frac{\sqrt{5}+1}{4}$

Explanation:

By: Munesh Kumari

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