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f: R rarr R defined by f(x) =1/2 x|x| + ...

`f: R rarr R` defined by `f(x) =1/2 x|x| + cos x+1` is a)one-one and onto B)one-one and into C)many-one and onto D)many-one and into

A

one-one and onto

B

one-one and into

C

many-one and onto

D

many-one and into

Text Solution

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The correct Answer is:
A
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