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Question

Find the value of 1tan2x−1sin2x

A
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B
1
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C
3
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D
1
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Solution

The correct option is C 1
Given, 1tan2x1sin2x
=cot2xcosec2x
=cot2x(1+cot2x) .............[Since cosec2x=1+cot2x]
=1

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