The function is f(x)= x cos x
Answers
Answered by
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
0
Answer:
f' (x) > 0 for all values of x.
Hope it helps!
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