# Prove that <a nam

To prove:

As equation on RHS is a simplified expression, so we must opt Left side equation and simplify it further so that we can get

LHS = RHS.

And thus we will be able to prove it.

LHS =

The expression gives us hint that we ca use the identity:

sin2A + cos2A = 1 to simplify the expression but to use this we need to multiply numerator and denominator with

sin A + (1 – cos A).

LHS =

Hence, it is proved that:

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