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प्रश्न
Find the radian measure corresponding to the following degree measure: −300°
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उत्तर
We have:
\[180^\circ = \pi \text{ rad }\]
\[ \therefore 1^\circ = \frac{\pi}{180} \text{ rad }\]
\[- 300^\circ\]
\[ = - \left( 300 \times \frac{\pi}{180} \right)\]
\[ = - \frac{5\pi}{3} \text{ rad }\]
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[Hint: 1 radian = `180^circ/pi = 57^circ30^'` approx]
