Mn ơi giúp mik vs ạCảm ơn mn nhiều ❤️❤️❤️

Mn ơi giúp mik vs ạ
Cảm ơn mn nhiều ❤️❤️❤️
mn-oi-giup-mik-vs-a-cam-on-mn-nhieu-️-️-️

0 thoughts on “Mn ơi giúp mik vs ạCảm ơn mn nhiều ❤️❤️❤️”

  1. a, 

    ĐK: $2-3m\le -2$

    $\Leftrightarrow 3m\ge 4$

    $\Leftrightarrow m\ge \dfrac{4}{3}$

    $\Rightarrow m\in\Big[\dfrac{4}{3};+\infty)$

    b,

    ĐK: $3\le 2m-5$ hoặc $2m+4\le -1$

    $\Leftrightarrow m\ge 4$ hoặc $m\le -\dfrac{5}{2}$

    $\Rightarrow m\in(-\infty;-\dfrac{5}{2}\Big]\cup[4;+\infty)$

    c,

    ĐK: $5-3m\le -2$ hoặc $2<-3m-2$

    $\Leftrightarrow m\ge \dfrac{7}{3}$ hoặc $m<\dfrac{-4}{3}$

    $\Rightarrow m\in(-\infty;\dfrac{-4}{3}\Big)\cup\Big[\dfrac{7}{3};+\infty)$

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  2. `a)` 

    `<=> 2 – 3m < -2`

    `<=> -3m < -4`

    `<=> m > 4/3`

    `b)`

    \(\left[ \begin{array}{l}2m + 4 < -1\\2m – 5 > 3\end{array} \right.\) 

    `<=>` \(\left[ \begin{array}{l}m < -\dfrac{5}{2}\\m > 4\end{array} \right.\) 

    `=> m ∈ (-∞; -5/2) ∪ (4; +∞)`

    `c)`

    `ĐK: 5 – 3m > -3m + 2`

    `=> 0m > -3`

    `=> D = RR`

    \(\left[ \begin{array}{l}5 – 3m < -2\\-3m – 2 ≥ 2\end{array} \right.\) 

    `<=>` \(\left[ \begin{array}{l}m > \dfrac{7}{3}\\m ≤ \dfrac{-4}{3}\end{array} \right.\) 

    `=> m ∈ (-∞; -4/3] ∪ (7; 3)`

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