Trigonometry Classwork Solutions

  1. x\in\left\lbrace\frac{7\pi}{18},\frac{11\pi}{18},\frac{19\pi}{18},\frac{23\pi}{18},\frac{31\pi}{18},\frac{35\pi}{18}\right\rbrace
  2. x\in\left\lbrace\frac{\pi}{3},\frac{2\pi}{3},\frac{4\pi}{3},\frac{5\pi}{3}\right\rbrace
  3. x\in\left\lbrace\frac{\pi}{12},\frac{5\pi}{12},\frac{7\pi}{12},\frac{11\pi}{12},\frac{13\pi}{12},\frac{17\pi}{12},\frac{19\pi}{12},\frac{23\pi}{12}\right\rbrace
  4. x\in\left\lbrace\frac{5\pi}{18},\frac{11\pi}{18},\frac{17\pi}{18},\frac{23\pi}{18},\frac{29\pi}{18},\frac{35\pi}{18}\right\rbrace
  5. x\in\left\lbrace\frac{\pi}{9},\frac{5\pi}{9},\frac{7\pi}{9},\frac{11\pi}{9},\frac{13\pi}{9},\frac{17\pi}{9}\right\rbrace
  6. x\in\left\lbrace\frac{\pi}{6},\frac{3\pi}{4},\frac{5\pi}{6},\frac{7\pi}{4}\right\rbrace
  7. x\in\left\lbrace\frac{\pi}{4},\frac{3\pi}{4},\frac{5\pi}{4},\frac{7\pi}{4}\right\rbrace
  8. x\in\left\lbrace\frac{\pi}{3},\frac{2\pi}{3},\frac{4\pi}{3},\frac{5\pi}{3}\right\rbrace
  9. x\in\left\lbrace 0,\frac{\pi}{6},\frac{2\pi}{3},\frac{5\pi}{6},\frac{4\pi}{3},\frac{3\pi}{2}\right\rbrace
  10. x\approx 1.159, x\approx 5.124
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