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Question

If θ is any acute angle, what is the area of a square with adjacent sides sin θ and cosec θ?

A
sinθ×cosθ
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B
cos2 θ
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C
sin2 θ
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Solution

In a square, lengths of all the sides are equal.

Which means sinθ=cosecθ.

sin θ=cosec θ only when θ=900

θ=90
length of side = sin 90=1
So, area = 1 × 1
= 1

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