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Solve cos x gt 1 -(2x)/pi....

Solve `cos x gt 1 -(2x)/pi`.

Text Solution

Verified by Experts

The correct Answer is:
`x in (0, pi//2) uu (pi, oo)`
Graphs of `y=cos x` and `y=1-(2x)/pi` are drawn as shown in the following figure.

From the figure,
`cos x gt 1- (2x)/pi` for `x in (0, pi//2) uu (pi, oo)`
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