Differentiability doubt
The options doesn't contain a or b
But I'm stuck with a and b in f'(b)
So what can be the mistake
Or what should be done further ?
PFA
10 Replies
@Apu
Note for OP
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q21
f(g(x))=x so f'(g(x))g'(x)=1 so f'(g(a))=1/g'(a) and f'(b)=1/5
sinx-cosx>0 domain ($\frac{\pi}{4},\frac{5\pi}{4}$), so denominator ki domain $e^{(2k+\frac{1}{4},2k+\frac{5}{4}}$, and numerator ki R, toh option b
f(x)=1/64 for 0<=x=<1/8, x^2 1/8<x<=1 and x^3 x>1 (just compare functions).
SirLancelotDuLac
here you go @Say_miracle_shadow
+solved @Deleted User @SirLancelotDuLac
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