Q1 of 51 Page 54

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Formula used: - sin2 + cos2 = 1
BY TAKING L.H.S






= 1 + 1


= 2


L.H.S = R.H.S .HENCE PROVED


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If tan(A + B) = x and tan(A – B) = y. Find the value of tan 2A and tan2B.

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