Объяснение:
<var>f(x)=−x2+3x+1f′(x)=−2x+3</var>
\begin{gathered}\\ < var > -2x+3=0\\ -2x=-3\\ x=\frac{3}{2} < /var > \end{gathered}<var>−2x+3=0−2x=−3x=23</var>
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Объяснение:
<var>f(x)=−x2+3x+1f′(x)=−2x+3</var>
\begin{gathered}\\ < var > -2x+3=0\\ -2x=-3\\ x=\frac{3}{2} < /var > \end{gathered}<var>−2x+3=0−2x=−3x=23</var>