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Which of the following functions (s) has...

Which of the following functions (s) has/have the range equals [-1, 1]?

A

`f(x) = sin (log_(2)x)`

B

`f(x) = sin 3x`

C

`f(x) = cos((x^(2))/(1+x^(2)))`

D

`f(x) = cos (2 sin x)`

Text Solution

Verified by Experts

The correct Answer is:
A, B
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