SinA - cos A – InterviewSolution

1.	SinA - cos A
Answer» As we know, sin^2 A + cos^2 A = 1.................................................................Which could be written as,(Sin A - cos A )^2 + 2 sinA cos A = 1(SinA- cos A)^2 = 1 - 2sinA cosASinA - cos A = root ( 1- 2sinA cosA)

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