Q. 72

Mark (√) against the correct answer in the following:


A. increasing in (0, 1)

B. decreasing in (0, 1)

C. increasing in and decreasing in

D. none of these

Answer :

Now see

In (0,1) sin x is increasing and cos x is decreasing

sin x – x cos x will be increasing

f(x) is increasing in (0,1)

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