Trigonometry - Trigonometric Equations
Trigonometry - Trigonometric Equations
Solve \(\cos(3x - 4) = -\frac{4}{5}\) for \(-\frac{\pi}{2} \leq x \leq 2\pi\).
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Answer:x=0.0716,0.501,2.17,2.60,4.26,4.69 rad (3 s.f.).
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