Math, asked by hyadav400, 11 months ago

If A= 45° , Verify that Cos2A = Cos2A – Sin2A
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Answers

Answered by poulomimallick9

3

Step-by-step explanation:

cos2A = cos 2×45= cos 90= 0= LHS..

RHS= cos2A-sin2A= 0-1 =-1..

lhs is not equal to RHS...

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