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Let f(x)=x^3-3x^2+2x . If the equation f...

Let `f(x)=x^3-3x^2+2x` . If the equation `f(x)=k` has exactly one positive and one negative solution then the value of `k` equals. `-(2sqrt(3))/9` (b) `-2/9` `2/(3sqrt(3))` (d) `1/(3sqrt(3))`

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" (vii) f(x)=3x^(2)-1;x=(1)/(sqrt(3)),(2)/(sqrt(3))

x^2+sqrt(3).f(x)+2sqrt(3)-3=0 , then the value of f(sqrt(3))