The correct option is D sinθ Now, cos( 3π2 θ) #160; =cos( π+π2 θ) #160; = cos( π2 θ) #160; = sinθ . ...

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Relation between Trigonometric Ratios

cos 3π2 - θ =

Question

$cos (\frac{3 π}{2} - θ) =$

- cos θ

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- sin θ

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sin θ

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cos θ

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Solution

The correct option is D $- sin θ$
Now,
$cos (\frac{3 π}{2} - θ)$
$= cos (π + \frac{π}{2} - θ)$
$= - cos (\frac{π}{2} - θ)$
$= - sin θ$ .

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