Question

For x∈R, f(x) = |log2 – sinx| and g(x) = f(f(x)), then:



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Answer 1

Step-by-step explanation:

(1) g is differentiable at x = 0 and g'(0) = –sin(log2)

(2) g is not differentiable at x = 0

(3) g'(0) = cos(log2)

(4) g'(0) = –cos(log2)

Ans. (3)