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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\(= 540-23.58^\circ = 516.42^\circ\)

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