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Consider the real - valued function sati...

Consider the real - valued function satisfying `2f(sinx) + f(cosx) = x`. Then , which of the following is not true ? a)Domain of f(x) is [-1,1] b)Range of f(x) is `[-(2pi)/3,pi/3]` c)f(x) is one - one d)None of these

A

Domain of f(x) is [-1,1]

B

Range of f(x) is `[-(2pi)/3,pi/3]`

C

f(x) is one - one

D

None of these

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The correct Answer is:
D
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