y’=2x-5
y’ = 0 e="t"
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y(2,5)=
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y(-2)=21 y(5)=7
Vậy
/>
/>
y’=2x-5
y’ = 0
\Leftrightarrow x=
\frac
{5}{2
}
y(\
frac
{5
}{2
})=
y(-2)=21 y(5)=7
Vậy
>
>