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If f(x) = x^(3) + 3x^(2) + 12x - 2 sin x...

If f(x) `= x^(3) + 3x^(2) + 12x - 2 sin x` , where f: `R to R`, then

A

`f(x)` is many - one and onto

B

`f(x)` is one -one and onto

C

`f(x)` is one - one and into

D

`f(x)` is many - one and into

Text Solution

Verified by Experts

The correct Answer is:
B
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