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Let RR be the set of all real numbe...

Let `RR ` be the set of all real numbers and `f : R to R ` be given by ` f(x) = 3 x^(2) +1 ` then the set `f^(-1) ([1,6])` is -

A

`{-sqrt((5)/(3)) , 0 , sqrt((5)/(3)) }`

B

`[-sqrt((5)/(3)),sqrt((5)/(3))]`

C

`[-sqrt((1)/(3)), sqrt((1)/(3))] `

D

`(-sqrt((5)/(3)), sqrt((5)/(3)))`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2014-MULTIPLE CHOICE QUESTIONS
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