Let the function f:R rarr R be defined ...

Let the function `f:R rarr R ` be defined by `f (x) = 2x + sinx` for `x in R`.Then f is a)one - to - one and onto b)one - to - one but not onto c)onto but not one - to - one d)neither one - to - one nor onto

A

one - to - one and onto

B

one - to - one but not onto

C

onto but not one - to - one

D

neither one - to - one nor onto

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The correct Answer is:

A

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