Mathematics

Mathematics

Problem

If cos⁡θ=−34\cos \theta = -\frac{3}{4} , π2<θ<π\frac{\pi}{2} < \theta < \pi find the exact value of: a. sin⁡θ\sin \theta b. tan⁡θ\tan \theta c. cos⁡(π−θ)\cos(\pi - \theta)

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