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Find the range of the following function...

Find the range of the following function:- `f(x) = x^2 + 2`, x is a real number.

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The correct Answer is:
`{y : y in R and y ge 2}`
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  13. f (x) = (| x|)/( x) , x ne 0 then the value of function

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  14. If x ne 1 and f(x) = ( x + 1)/( x - 1) is a real function, then f(f(...

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  15. If f (x) = (2 x + 1)/( 3 x - 2) , then (fof) (2) is equal to

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