can someone pls tell me is this the right way to solve it.......or if it's not correct pls telll me how to solve the answer below,
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mate your mistake is 1+2sin^2 theta is not equals to 2cos^2 theta because 2(sin ^2 theta)=2(1-cos^2 theta)=2-2cos^2theta
mark as brainlist plz
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mark as brainlist dude
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