1.

If f(x)=(x)/(sqrt(1+x^(2))), then fofof(x) is equal to:

Answer»

`(X)/(SQRT((1+3X^(2))))`Q
`(3x)/(sqrt(1-x^(2)))`
`(3x)/(sqrt((1+x^(2)))`
none of these

Answer :A


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