what is the derivation of sin 2x
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sin 2x can be written as sin(X+X)
we know that sin(A+B)= sin A cos B+ cos A sin B
sin (X+X) = sin X cos X + cos X sin X
= 2 sin X cos X
hence proved
hope this helps you mate...
we know that sin(A+B)= sin A cos B+ cos A sin B
sin (X+X) = sin X cos X + cos X sin X
= 2 sin X cos X
hence proved
hope this helps you mate...
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