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Question

2tanθ(1tan2θ)secθ(1+tanθ)2 equal to

A
2sinθ(1tanθ)(1+tanθ)
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B
2sinθ1+tanθ
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C
2sinθ(1+tanθ)(1tanθ)
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D
None of these
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Solution

The correct option is A 2sinθ(1tanθ)(1+tanθ)

Consider the given expression.

2tanθ(1tan2θ)secθ(1+tanθ)2

2sinθcosθ(1tan2θ)1cosθ(1+tanθ)2[sec2θ=1+tan2θ]

2sinθ(1tanθ)(1+tanθ)(1+tanθ)2

2sinθ(1tanθ)(1+tanθ)

Hence, this is the answer.


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