यदि f(x) = (x)/( sqrt(1 + x^2) ) तब (...

यदि `f(x) = (x)/( sqrt(1 + x^2) ) ` तब (fofof) (x) =

A

`(3x)/(sqrt(1 + x^2)) `

B

`(x)/(sqrt(1 + 3x^2) ) `

C

`(3x)/(sqrt( (1 - x^2) ) `

D

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लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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