Auto-Math
Simplifiez l'expression \(a^2(a^{-3} + a^{-2})\).
\(\frac{1}{a^6}+\frac{1}{a^4}\)
\(1+\frac{1}{a}\)
\(\frac{1}{a}\)
\(\frac{1}{a^{10}}\)
Calculez \(\sqrt{12}+\sqrt{8}-2\sqrt{2}+3\sqrt{3}\).
\(3\sqrt{2}+3\sqrt{3}\)
\(5\sqrt{6}\)
\(5\sqrt{3}\)
\(3\sqrt{5}\)
Ecrivez sans le symbole de valeur absolue l'expression \(|x+1|\) si \(x<-1\).
\(-x-1\)
\(x+1\)
\(x-1\)
\(-1\)
Calculez \((\sqrt{2}-\sqrt{3})\sqrt{6}\).
\(3\sqrt{2}-2\sqrt{3}\)
\(2\sqrt{3}-3\sqrt{2}\)
\(-\sqrt{6}\)
\(2\sqrt{2}-3\)
Calculez \(\dfrac{7}{12}+\dfrac{5}{18}\).
\(1\)
\(\dfrac{1}{3}\)
\(\dfrac{31}{36}\)
\(\dfrac{2}{5}\)
Calculez \(\dfrac{3\sqrt{2}+\sqrt{3}}{\sqrt{6}}\).
\(\dfrac{8\sqrt{3}+\sqrt{6}}{6}\)
\(\dfrac{\sqrt{8}}{2}+\dfrac{1}{2}\)
\(\sqrt{3}+\dfrac{\sqrt{2}}{2}\)
\(2\sqrt{2}\)
Calculez \(\dfrac{5}{2}-\left( \dfrac{1}{3}+1\right)\).
\(\dfrac{7}{6}\)
\(-\dfrac{3}{2}\)
\(\dfrac{19}{6}\)
\(\dfrac{14}{6}\)
Calculez \(\dfrac{4}{13}-\dfrac{3}{52}+\dfrac{35}{39}\).
\(\dfrac{34}{39}\)
\(\dfrac{22}{13}\)
\(\dfrac{179}{156}\)
impossible
Résolvez l'inéquation \(|x+5|\geq 2\).
\([-3;+\infty[\)
\([-7,-3]\)
\([-7,7]\)
\(]-\infty;-7]\cup [-3;+\infty[\)
Résolvez l'inéquation \(|x-4|<1\).
\(]3;+\infty[\)
\(]-\infty;5[\)
\(]3,5[\)
\(3\mbox{ et }5\)
