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(2)
f(x) =√sin(x/2)
f'(x)
=(1/[2√sin(x/2)] ) .d/dx sin(x/2)
=(1/[2√sin(x/2)] ) .cos(x/2) . d/dx (x/2)
=cos(x/2)/[4.√sin(x/2)]
f(x) =√sin(x/2)
f'(x)
=(1/[2√sin(x/2)] ) .d/dx sin(x/2)
=(1/[2√sin(x/2)] ) .cos(x/2) . d/dx (x/2)
=cos(x/2)/[4.√sin(x/2)]
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