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CBSE Class 10 Answered

PROBLEM
Asked by | 05 Jun, 2008, 02:23: PM
Expert Answer

1) sin2A = sin 90 = 1

2sinA cosA = 2sin45 cos45 = 1

So, sin2A = 2sinA cosA

2) cos2A = cos90 = 0

Answered by | 06 Jun, 2008, 11:59: PM
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