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Convertissez en radians l'angle \(-75^\circ \).
\( -75\mbox{ radians}\)
\( \dfrac{\pi}{36} \mbox{ radians}\)
\( \dfrac{5\pi}{12}\mbox{ radians}\)
\( \dfrac{19\pi}{12}\mbox{ radians}\)
Convertissez en degrés l'angle \(5\pi \over 2 \).
\(90\mbox{ degrés}\)
\(\dfrac{5}{2} \mbox{ degrés}\)
\( \dfrac{1}{4}\mbox{ degrés}\)
\( \dfrac{\pi}{2}\mbox{ degrés}\)
Si \(\alpha=53^{\circ}\) , alors l'opposé de \(\alpha\) vaut
\( 35^{\circ} \)
\( 233^{\circ} \)
\( 413^{\circ} \)
\( -53^{\circ} \)
Convertissez en degrés l'angle \(5\pi\).
\(\pi\mbox{ degrés}\)
\( 5\mbox{ degrés}\)
\(180\mbox{ degrés}\)
\(\sin ({\pi \over 2}+a)= \)
\( \cos a \)
\(\sin a \)
\( 1+\sin a \)
\( -\cos a \)
Résolvez l'équation \(\sin x = -1\) .
\(S=\left\{\dfrac{\pi}{2}\right\} \)
\( S=\left\{\dfrac{3\pi}{2}\right\} \)
\( S=\left\{\dfrac{3\pi}{2}+2k\pi;\, k\in\mathbb{Z}\right\} \)
\( S=\left\{\dfrac{\pi}{2}+2k\pi;\, k\in\mathbb{Z}\right\} \)
Résolvez l'équation \(tg\, 3x = \dfrac{\sqrt{3}}{3}\) .
\( S=\left\{\dfrac{\pi}{18}\right\} \)
\( S=\left\{\dfrac{\pi}{18}+k\dfrac{\pi}{3};\, k\in\mathbb{Z}\right\} \)
\( S=\left\{\dfrac{\pi}{18}+2k\dfrac{\pi}{3};\, k\in\mathbb{Z}\right\} \)
\( S=\left\{\dfrac{\pi}{18}+2k\pi;\, k\in\mathbb{Z}\right\} \)
Convertissez en radians l'angle \(-135^\circ \).
\( -135\mbox{ radians}\)
\( \dfrac{3\pi}{4}\mbox{ radians}\)
\( \dfrac{5\pi}{4} \mbox{ radians}\)
\( -\dfrac{5\pi}{4} \mbox{ radians}\)
Convertissez en degrés l'angle \(\pi \over 2\) .
\(45\mbox{ degrés}\)
\( 180 \mbox{ degrés}\)
Convertissez en radians l'angle \(30^\circ \).
\(30\mbox{ radians}\)
\( \dfrac{\pi}{6} \mbox{ radians}\)
\( \dfrac{\pi}{3} \mbox{ radians}\)
\(\dfrac{\pi}{30}\mbox{ radians}\)
