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Résolvez l'inéquation \(|x+5|\geq 2\).
\([-3;+\infty[\)
\([-7,-3]\)
\([-7,7]\)
\(]-\infty;-7]\cup [-3;+\infty[\)
Calculez \(\left( \dfrac{25}{16}\right)^{1/4}\).
\(\frac{6,25}{4}\)
\(\frac{16^{4}}{25^{4}}\)
\(\frac{\sqrt{5}}{2}\)
\((\frac{5}{4})^{9/4}\)
Ecrivez sans le symbole de valeur absolue l'expression \(|x-2|\) si \(x<2\).
impossible
\(2\)
\(x-2\)
\(2-x\)
Calculez \(10^4 \cdot 10^{-2}\).
0,00000001
10000
0,01
100
Calculez \(3\sqrt{6}+2\sqrt{12}-\sqrt{24}+\sqrt{27}\).
\(5\sqrt{6}+7\sqrt{3}\)
\(8\sqrt{6}\)
\(5\sqrt{21}\)
\(\sqrt{6}+7\sqrt{3}\)
Ecrivez sans valeur absolue \(|x-3|\le 1\).
\([2,4]\)
\([1,3]\)
\(]-\infty;4]\)
\([-2,2]\)
Calculez \(\dfrac{7}{12}+\dfrac{5}{18}\).
\(1\)
\(\dfrac{1}{3}\)
\(\dfrac{31}{36}\)
\(\dfrac{2}{5}\)
Elevez au carré \(2+\sqrt{3}\).
\(7\)
\(12\)
\(7+2\sqrt{3}\)
\(7+4\sqrt{3}\)
Calculez \(\sqrt{12}+\sqrt{8}-2\sqrt{2}+3\sqrt{3}\).
\(3\sqrt{2}+3\sqrt{3}\)
\(5\sqrt{6}\)
\(5\sqrt{3}\)
\(3\sqrt{5}\)
Calculez \(\sqrt[4]{10}\sqrt[12]{10}\sqrt[3]{15}\).
\(\sqrt[3]{150}\)
\(\sqrt[19]{1500}\)
\(\sqrt[19]{5}\sqrt[16]{2}\)
\(15\sqrt{15}\cdot 10^8\)
