Trigonometry - Trigonometric Equations

Trigonometry - Trigonometric Equations

TGM Original Questions

Solve each of the following equations.

\(\ln [\sin (3x - 1)] = -0.7081\), \(0 \leq x \leq 2\pi\)
\(e^{\sec (0.5x)} = \frac{9}{2}\), \(-\pi \leq x \leq \pi\)

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Answer:(i) x = 0.505, 1.21, 2.60, 3.30, 4.69, 5.40 rad; (ii) x = -1.67, 1.67 rad

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