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Mathematics, 12.09.2021 21:10 sydneyharding36191

Soient a et b deux nombre rationnels tel que a $\geq$ -8 et b $\geq$ 5
Montrez que
1) a+4 $\geq$ -4
2) b- $\frac{1}{2}$ $\geq$ $\frac{9}{2}$
3) A+b $\geq$ -3

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Soient a et b deux nombre rationnels tel que a-8 et b5
Montrez que
1) a+4-4
2)...

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