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Find the values of b for which the funct...

Find the values of `b` for which the function `f(x)=sinx-b x+c` is a decreasing function on `R` .

Text Solution

Verified by Experts

We have given
`f(x)=sinx-bx+c`
Then
`f'(x)=cosx-b`
As we have given `f(x)` is a decreasing function on `R`
Then
`f'(x)`<`0`
`implies cos x−b<0 or b>cos x`
...
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