Trigonometry - Trigonometric Equations
Trigonometry - Trigonometric Equations
IB AA SL: core and optional content
Core: the cosine equation. Optional: the secant equation.
- Solve, for angles between \(0\) and \(\pi\) radians, \(\cos(3x + 2) = 0.5\).
- Solve, for angles between \(0^\circ\) and \(360^\circ\), \(\sec(2x + 30^\circ) = 3.086\).
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Answer:(a) 5pi/9-2/3 or 7pi/9-2/3. (b) 20.5 degrees, 129.5 degrees, 200.5 degrees, 309.5 degrees.
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