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माना g: R to (0,pi/3] है, जो g(x) =cos^...

माना `g: R to (0,pi/3]` है, जो `g(x) =cos^(-1)((x^(2)-k)/(1+x^(2)))` मारा परिभाषित है, तो g के आच्छादक फलन होने के लिये 'K' के संभव मान हैं

A

`{1/2}`

B

`(-1,1/2]`

C

`{-1/2}`

D

`[-1/2,1}`

लिखित उत्तर

Verified by Experts

The correct Answer is:
C
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