Math, asked by shobanasushmitha9, 3 days ago

The function is f(x)= x cos x​

Answers

Answered by ruhisinghlife40
0

Answer:

∵f(x)=x+cosx

On differentiating, we get

f

(x)=1−sinx.f

(x)>0 for all values of x

(∵sinx is lying between −1 and +1)

∴f(x) is always increasing.

Answered by choprasiddharth10
0

Answer:

f' (x) > 0 for all values of x.

Hope it helps!

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