Simple Trigonometric Equations
REMEMBER
\(\sin \theta = 0.4\)
\(\sin ^{-1} 0.4 = 23.58^\circ\)
\(\Theta = 23.58^\circ\)
For solutions \(180^\circ<\Theta<720^\circ\):
\(\Theta\)1\(= 360+23.58^\circ = 383.58^\circ\)
\(\Theta\)2\(= 540-23.58^\circ = 516.42^\circ\)