answer this please!!!!!
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astha2109:
unable to understand
sry was answering another question
sin^2 + cos^2 + 2sin.cos is x^2.....ok
sin^2 + cos^2 is 1...
so, 1+ 2sin.cos is x^2
2sincos is x^2 - 1
Sin.cos is (x^2 - 1)/2
Hence, sin^2 cos^2 = (sin.cos)^2 = {(x^2 - 1)/2} ^2
Hope u get it....If not I will tell tomorrow morning....
Gn
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