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Trouver l'ensemble \(S \) des \(x\) tels que \(e^{e^x} = 1\).
\(S = \mathbb{R}\)
\( S = \mathbb{R}^{+} \)
\(S = \{0\}\)
\( S = \emptyset\)
Trouver l'ensemble \(S \) des \(x\) tels que \( \log_{10}(3x + 7) = 2 \log_{10}(5)\).
\(S = \{1\} \)
\( S = \{6\} \)
\(S = \{18\}\)
\( S =\left \{\dfrac{25}{3}\right\} \)
Calculez \(\displaystyle\lim_{\stackrel{x \rightarrow 0}{x > 0}} \ln(\sin(x))\sin(x) \).
\(0\)
\(1\)
\(\infty\)
La limite n'existe pas.
Trouver l'ensemble \(S \) des \(x\) tels que \(\ln(x) + \ln(x + 1) = 0\).
\(S =\left \{\dfrac{-1 - \sqrt{5}}{2}, \dfrac{-1 + \sqrt{5}}{2} \right\} \)
\(S =\left \{\dfrac{-1 + \sqrt{5}}{2}\right\} \)
\(S =\left \{\dfrac{-1 - \sqrt{5}}{2}\right\} \)
\( S = \emptyset \)
Trouver l'ensemble \(S \) des \(x\) tels que \(2\ln(x) = \ln(2x) \).
\( S = \{0\} \)
\(S = \{2\} \)
\(S = \{2, 0\} \)
\( S = \{\frac{1}{2}, 2\} \)
Trouver l'ensemble \(S \) des \(x\) tels que \(\ln(x^2 + x - 1) = \ln(x)\).
\(S = \{1, -1\}\)
\(S = \{-1, 2\} \)
Trouver l'ensemble \(S \) des \(x\) tels que \(e^{3x} + e^{2x} - 2e^x = 0\).
\(S = \{0, -2, 1\} \)
\(S = \{-2, 1\}\)
Trouver l'ensemble \(S \) des \(x\) tels que \(e^{2x} + 2 e^x + 1 = 0\).
\( S = \{\ln(2)\}\)
\(S = \{\ln(2), -\ln(2)\} \)
Trouver l'ensemble \(S \) des \(x\) tels que \(\ln^2(x) - 2 \ln(x) + 1 = 0\).
\(S = \{e\} \)
\(S = \{e, e^{-1}\} \)
\(S = \{e, -e\}\)
\(S = \emptyset\)
Trouver l'ensemble \(S \) des \(x\) tels que \(e^{x} + 3e^{-x} > 4\).
\(S = ]-\infty, 0[ \)
\( S = ]\ln(3), +\infty[ \)
\(S = ]-\infty, 0[ \cup ]\ln(3), +\infty[ \)
\(S = ]-\infty, 1[ \cup ]3, +\infty[\)
