Auto-Math
Calculez \(\dfrac{5}{30}-\dfrac{2}{45}+\dfrac{11}{75}\).
\(\dfrac{121}{450}\)
\(\dfrac{7}{30}\)
\(\dfrac{7}{225}\)
\(\dfrac{29}{75}\)
L'opposé de \( x-y+z\) est
\(-x-y-z\)
\(z-x+y\)
\(-x+y-z\)
\(\frac{1}{x-y+z}\)
Ecrivez avec des valeurs absolues l'intervalle \([\,-2,6\,]\).
\(\vert x-2\vert\leq 6\)
\(\vert x\vert\leq 6\)
\(\vert x-2\vert\leq 4\)
\(\vert x\vert\leq 4\)
Ecrivez sans le symbole de valeur absolue l'expression \(||-2|-|-3||\).
\(5\)
\(-1\)
\(1\)
\(-5\)
Calculez le P.P.C.M. de 12 et 18.
\(6\)
\(216\)
\(36\)
impossible
Simplifiez l'expression \(\left( \dfrac{a^{-3}b^{-2}c^{-2}}{a^2b^3c^2}\right)^2\).
\(\dfrac{1}{a^{10}b^{10}c^{8}}\)
\(\dfrac{b^2}{a^2}\)
\(a^{25}b^{25}c^{16}\)
\(ab\)
Calculez \((\sqrt{2}-\sqrt{3})\sqrt{6}\).
\(3\sqrt{2}-2\sqrt{3}\)
\(2\sqrt{3}-3\sqrt{2}\)
\(-\sqrt{6}\)
\(2\sqrt{2}-3\)
Ecrivez sans valeur absolue \(|x-3|\le 1\).
\([2,4]\)
\([1,3]\)
\(]-\infty;4]\)
\([-2,2]\)
Calculez \(9^{-1/2}\).
\(\dfrac{1}{81}\)
\(\pm\dfrac{1}{3}\)
\(-3\)
\(\dfrac{1}{3}\)
Calculez le P.P.C.M. de 12 et 15.
\(3\)
\(60\)
\(180\)
