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Explain Solution for RD Sharma Maths Class 12 Chapter 17 Maxima and Minima Exercise Fill in the blanks Question 16 maths textbook solution

Answers (1)

Answer:

              \frac{1}{2}

Hint:

For maxima or minima we must have {f}'\left ( x \right )=0

Solution:

Let the number be x, then

\begin{aligned} &y=x-x^{2} \\ &\frac{d y}{d x}=1-2 x \text { and } \frac{d^{2} y}{d x^{2}}=-2(<0) \\ &1-2 x=0 \\ &x=\frac{1}{2} \end{aligned}

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