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The range of f: R to R ,f(x) = ((sqrt...

The range of ` f: R to R ,f(x) = ((sqrt(( x^(2)+ 1 ))- 3x))/( sqrt( x^(2) +1)+x) ` is

A

`(0, oo)`

B

`(-1, oo)`

C

`(-oo, -1)`

D

`[1, oo)`

Text Solution

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The correct Answer is:
B
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