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माना f:Rto[1,oo) है जो f(x)=log(10)(sqrt...

माना `f:Rto[1,oo)` है जो `f(x)=log_(10)(sqrt(3x^(2)-4x+k+1)+10)` द्वारा परिभाषित है यदि `f(x)` एकैकी है तो

A

`k=1/3`

B

`klt1/3`

C

`kgt1/3`

D

`k=1`

लिखित उत्तर

Verified by Experts

The correct Answer is:
A
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