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Let x1,x2,x3 be the critical points of the function f(x)=3x4+4x3−12x2+4 and f(x) has local maximum at x2 and local minimum at x1,x3 (x1<x3). The number of real roots of the equation f(x)=0 in the interval [x1,x3] is equal to |
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Answer» Let x1,x2,x3 be the critical points of the function f(x)=3x4+4x3−12x2+4 and f(x) has local maximum at x2 and local minimum at x1,x3 (x1<x3). The number of real roots of the equation f(x)=0 in the interval [x1,x3] is equal to |
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