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Let f(x)=cospix+10x+3x^2+x^3,-2lt=xlt=3....

Let `f(x)=cospix+10x+3x^2+x^3,-2lt=xlt=3.` The absolute minimum value of `f(x)` is 0 (b) `-15` (c) `3-2pi` none of these

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