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Calculez \(\dfrac{5}{30}-\dfrac{2}{45}+\dfrac{11}{75}\).
\(\dfrac{121}{450}\)
\(\dfrac{7}{30}\)
\(\dfrac{7}{225}\)
\(\dfrac{29}{75}\)
Ecrivez sans valeur absolue \(|x-3|\le 1\).
\([2,4]\)
\([1,3]\)
\(]-\infty;4]\)
\([-2,2]\)
Résolvez l'inéquation \(|x-4|<1\).
\(]3;+\infty[\)
\(]-\infty;5[\)
\(]3,5[\)
\(3\mbox{ et }5\)
Ecrivez sans le symbole de valeur absolue l'expression \(||-2|-|-3||\).
\(5\)
\(-1\)
\(1\)
\(-5\)
Calculez \(\dfrac{3\sqrt{2}+\sqrt{3}}{\sqrt{6}}\).
\(\dfrac{8\sqrt{3}+\sqrt{6}}{6}\)
\(\dfrac{\sqrt{8}}{2}+\dfrac{1}{2}\)
\(\sqrt{3}+\dfrac{\sqrt{2}}{2}\)
\(2\sqrt{2}\)
Ecrivez l'expression \(a\sqrt a\) sous forme de puissance.
\(a^{1/2}\)
\(a^{3/2}\)
\(3a^{1/2}\)
\(a^{2/3}\)
Résolvez l'inéquation \(|3x+2|\geq 4\).
\([\frac{2}{3};+\infty[\)
\(]-\infty;\frac{2}{3}]\cup[-2;+\infty[\)
\(]-\infty;-2]\cup[\frac{2}{3};+\infty[\)
\([-2,\frac{2}{3}]\)
Calculez \((a^{1/5})^{-5}\).
\(\frac{1}{a}\)
\(-a\)
\(\frac{1}{a^{24/5}}\)
\(\frac{1}{a^{25}}\)
Calculez \((1+\sqrt{3})(\sqrt{2}+1)\).
\(1+\sqrt{11}\)
\(2+\sqrt{6}\)
\(\sqrt{2}+1+\sqrt{6}+\sqrt{3}\)
\(\sqrt{2}+1+\sqrt{5}+\sqrt{3}\)
Calculez le P.P.C.M. de 18 et 27.
\(54\)
\(9\)
\(18\)
\(486\)
