WAEC - Further Mathematics (2011 - No. 2)
Express 75° in radians, leaving your answer in terms of \(\pi\).
\(\frac{5\pi}{12}\)
\(\frac{3\pi}{4}\)
\(\frac{5\pi}{6}\)
\(\frac{7\pi}{6}\)
Explication
\(180° = \pi rads\)
\(1° = \frac{\pi}{180}\)
\(\therefore 75° = \frac{\pi}{180} \times 75 \)
= \(\frac{5\pi}{12}\)