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Calculez le P.P.C.M. de 12 et 15.
\(3\)
\(60\)
\(180\)
impossible
Calculez \(\sqrt[4]{10}\sqrt[12]{10}\sqrt[3]{15}\).
\(\sqrt[3]{150}\)
\(\sqrt[19]{1500}\)
\(\sqrt[19]{5}\sqrt[16]{2}\)
\(15\sqrt{15}\cdot 10^8\)
Simplifiez l'expression \(\dfrac{28}{-84}\).
\(-56\)
\(-3\)
\(-\dfrac{1}{3}\)
Résolvez l'inéquation \(|x|<3\).
\(]-3,3[\)
\([0,3[\)
\(]0,3[\)
\(0,\, 1\mbox{ et }2\)
Calculez le P.P.C.M. de 18 et 27.
\(54\)
\(9\)
\(18\)
\(486\)
Calculez \(\dfrac{11}{12}-\dfrac{4}{15}\).
\(-\dfrac{7}{3}\)
\(\dfrac{13}{20}\)
\(\dfrac{7}{60}\)
\(\dfrac{2}{3}\)
Simplifiez l'expression \(a^2(a^{-3} + a^{-2})\).
\(\frac{1}{a^6}+\frac{1}{a^4}\)
\(1+\frac{1}{a}\)
\(\frac{1}{a}\)
\(\frac{1}{a^{10}}\)
Simplifiez l'expression \(\dfrac{a^3b}{a^4b^2}\).
\(ab^2\)
\(ab\)
\(\dfrac{1}{ab}\)
L'opposé de \( x-y+z\) est
\(-x-y-z\)
\(z-x+y\)
\(-x+y-z\)
\(\frac{1}{x-y+z}\)
Calculez \(\sqrt[3]{-125}\).
\(\frac{1}{5}\)
\(-\frac{1}{125^{3}}\)
\(-5\)
