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Ecrivez sans le symbole de valeur absolue l'expression \(|5-23|\).
\(-18\)
\(18\)
\(5\)
\(23\)
Simplifiez l'expression \(\dfrac{28}{-84}\).
\(-56\)
\(-3\)
\(-\dfrac{1}{3}\)
impossible
Calculez le P.P.C.M. de 12 et 15.
\(3\)
\(60\)
\(180\)
Calculez \(25^{0.5}\).
\(\pm 5\)
\(\sqrt[5]{2}\sqrt[3]{a^2}\)
\(\frac{1}{25^{2}}\)
Calculez \(\dfrac{5}{2}-\left( \dfrac{1}{3}+1\right)\).
\(\dfrac{7}{6}\)
\(-\dfrac{3}{2}\)
\(\dfrac{19}{6}\)
\(\dfrac{14}{6}\)
Calculez \(\left( \dfrac{25}{16}\right)^{1/4}\).
\(\frac{6,25}{4}\)
\(\frac{16^{4}}{25^{4}}\)
\(\frac{\sqrt{5}}{2}\)
\((\frac{5}{4})^{9/4}\)
Calculez \(10^4 \cdot 10^{-2}\).
0,00000001
10000
0,01
100
Calculez le P.G.C.D. de 18 et 27.
\(54\)
\(9 \)
Calculez \((-5)^0\).
\(-5\)
\(1\)
\(0\)
n'existe pas
Simplifiez l'expression \(\dfrac{98}{-49}\).
\(-\dfrac{1}{2}\)
\(49\)
\(-2\)
