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Trigonometry - Trigonometric Equations

Trigonometry - Trigonometric Equations

  1. Solve \(\sin x = -0.4321\) such that \( 0 < x < 2\pi\).
  2. Solve the equation \(\cos x = -\frac{1}{2}\) such that \( 0 \leq x \leq 2\pi\).

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Answer:(a) 3.59 rad or 5.84 rad. (b) 2pi/3 or 4pi/3.

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