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A function f : R rarr R, where R is the ...

A function f : R `rarr` R, where R is the set of real numbers, is defined by : `f(x)= (alpha x^2+6x-8)/(alpha+6x-8x^2)`. Find the interval of values of `alpha` for which f is onto. Is the function one-one for `alpha = 3` ? Justify your answer.

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MODERN PUBLICATION-RELATIONS AND FUNCTIONS -EXERCISE
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