1.

if f(x) =x/sqrt(1-x^(2)), then (fofof)(x)=

Answer»

`(X)/(SQRT(1+3x^(2)))`
`(x)/(sqrt(1-x^(2)))`
`(2X)/(sqrt(1+2x^(2)))`
`(x)/(sqrt(1+x^(2)))`

ANSWER :A


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