Question

Hey guys .. please help as soon as possible ..
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Answer 1

Answer:

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2sinx=tanx

2sinx=2x2sinxcosx/2

2sinx=2sinxcosx

2sinx=tanx

2sinxcosx=sinx/cosx

2sinxcos^2x/sinx=0

2cos^2x=0

Cos^2x=0

Cos^2x=cos90

X=+-90°

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Answer 2

I have attached the answer ..