Question

expansion of sin2what is expansion of sin 2 theta ​

Answer 1

Answer:

1 - cos²theeta

is the expansion of it...

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STEP BY STEP:-

we know that sin²theeta + Cos²theeta = 1

then sin²theeta = 1 - Cos ²theeta

Answer 2

here is your answer

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sin 2A = 2 sin A cos A

sin 2A = 2 tan A

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1+tan^2A