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Question

The value of the determinat (cos θsin θsin θcos θ is .

A
2 sin2θ
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B
2 cos2θ
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C
0
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D
1
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Solution

The correct option is D 1
(cos θsin θsin θcos θ = cos θ(cos θ) sin θ(sin θ)= cos2θ+sin2θ = 1

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