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Which of the following statment does not hold good for the function f(x)=cos -1 (2x 2 -1)? A)f is not differentiable at x=0 B)f is monotonic C)f is even D)f has an extremum

Which of the following statment does not hold good for the function f(x)=cos-1(2x2-1)?
A)f is not differentiable at x=0
B)f is monotonic
C)f is even
D)f has an extremum

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1 Answers

Deepak Kumar Shringi
askIITians Faculty 4407 Points
4 years ago
non monotonic562-1581_Capture.PNG

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