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If f(x) =x^(3) +ax^(2)+bx +5 sin^(2) x i...

If `f(x) =x^(3) +ax^(2)+bx +5 sin^(2) x` is an increasing function on R, then

A

`a^(2)-3b-15le0`

B

`a^(2)-3b+15ge0`

C

`a^(2)-3b+15le0`

D

`agt0andblt0`

Text Solution

Verified by Experts

The correct Answer is:
A, C
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