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If f(x) = (6-4x)/(1+2x+2x^(2)) find f...

If `f(x) = (6-4x)/(1+2x+2x^(2))` find f'(x) . Also find the value of x for which `f'(x) = 0 ` .

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The correct Answer is:
Therefore `f'(x) = 0 ` , when `x = (1)/(2)`(3underset(-)(+)sqrt(17))` .
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