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The values of parameter a for which the ...

The values of parameter `a` for which the point of minimum of the function `f(x)=1+a^2x-x^3` satisfies the inequality `(x^2+x+2)/(x^2+5x+6)<0a r e` `(2sqrt(3),3sqrt(3))` (b) `-3sqrt(3),-2sqrt(3))` `(-2sqrt(3),3sqrt(3))` (d) `(-2sqrt(2),2sqrt(3))`

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The values of parameter a for which the point of minimum of the function f(x)=1+a^(2)x-x^(3) satisfies the inequality (x^(2)+x+2)/(x^(2)+5x+6)<0 are (2sqrt(3),3sqrt(3))(b)-3sqrt(3),-2sqrt(3))(-2sqrt(3),3sqrt(3))(d)(-2sqrt(2),2sqrt(3))

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