Mark the correct alternative in the following: If the function f(x) = cos|x| – 2ax + b increases along the entire number scale, then

Question

Philoid · Accepted Answer

Formula:- (i) The necessary and sufficient condition for differentiable function defined on (a,b) to be strictly increasing on (a, b) is that f’(x)>0 for all x(a,b)

Given:-

f(x) = cos|x| – 2ax + b

For increasing f’(x)>0

-sinx-2a>0

2a<-sinx

Mark the correct alternative in the following:If the function f(x) = cos|x| – 2ax + b increases along the entire number scale, then

Mark the correct alternative in the following:
If the function f(x) = cos|x| – 2ax + b increases along the entire number scale, then