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If the function f(x)=cos|x|-2a x+b incre...

If the function `f(x)=cos|x|-2a x+b` increases along the entire number scale, then (a) `a=b` (b) `a=1/2b` (c) `alt=-1/2` (d) `a >-3/2`

A

`a le b `

B

`a=b/2`

C

`a lt - 1/2`

D

`a gt - 3/2`

Text Solution

Verified by Experts

The correct Answer is:
C
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