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फलन f(x) = 2 log (x-2) -x^(2) + 4x+1 नि...

फलन `f(x) = 2 log (x-2) -x^(2) + 4x+1` निम्न अन्तराल में वर्धमान होगा

A

`(1,2)`

B

`(2,3)`

C

`((5)/(2) , 3)`

D

`(2,4)`

लिखित उत्तर

Verified by Experts

The correct Answer is:
`B`
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