Solve each of the following equations. $\cos(3x + 2) = 0.5$, $0 \leq x \leq \pi$ \(\sec(2x + 30^

Question

Solve each of the following equations. $\cos(3x + 2) = 0.5$, $0 \leq x \leq \pi$ $\sec(2x + 30^\circ) = 3.086$, $0^\circ \leq x \leq 360^\circ$

Accepted Answer

(i) $x = \dfrac{5\pi}{9} - \dfrac{2}{3}, \dfrac{7\pi}{9} - \dfrac{2}{3}$; (ii) $x = 20.5^\circ, 129.5^\circ, 200.5^\circ, 309.5^\circ$

Trigonometry - Trigonometric Equations