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प्रश्न
Find the degree measure corresponding to the following radian measure:
\[- \frac{5\pi}{6}\]
उत्तर
We have:
\[\pi \text{ rad }= 180^\circ\]
\[ \therefore 1 \text{ rad }= \left( \frac{180}{\pi} \right)^\circ \]
\[\ \frac{5\pi}{6} = \left( \frac{180}{\pi} \times \left( - \frac{5\pi}{6} \right) \right)^\circ \]
\[ = - \left( 30 \times 5 \right)^\circ\]
\[ = - \left( 150 \right)^\circ\]
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[Hint: 1 radian = `180^circ/pi = 57^circ30^'` approx]
