Question

what should we do if we get x =√-1/3 in differentiation calculus to find minima and maxima ​

Answer 1

Hi friend here is your answer.

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In maxima - minima we get real values not imaginary. Its simply impossible. There must be some error.

Beacuse slope of the tangent must be parallel to x axis or you can say slope must be zero at real values.

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