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Solving Trigonometric Equations with Identities - Degrees and Radians

  1. 1
    Solve for $0°\leq x \leq360°$

    $$2\sin^2 x+\cos x -1=0$$
    ( use trig identities. )
  2. 2
    Solve for $0\leq x \leq 2\pi$

    $$2\cos^2 x+\sin x=1$$
  3. 3
    Solve for $0°\leq x \leq360°$

    $$8\sin^2 x-10\cos x -11=0$$
  4. 4
    Solve for $0\leq x \leq 2\pi$

    $$8\cos^2 x-10\sin x =11$$
  5. 5
    Solve for $0°\leq x \leq360°$

    $$-6\sin^2 x-\cos x +5=0$$
  6. 6
    Solve for $0\leq x \leq 2\pi$

    $$-6\cos^2 x +5=\sin x$$
  7. 7
    Solve for $0°\leq x \leq360°$

    $$4\sin^2 x+4\cos x -5=0$$
  8. 8
    Solve for $0\leq x \leq 2\pi$

    $$4\cos^2 x -5=-4\sin x$$
  9. 9
    Solve for $0°\leq x \leq 360°$

    $$\sin x - \cos x=0$$
  10. 10
    Solve for $0\leq x \leq 2\pi$

    $$\sin x + \cos x=0$$
  11. 11
    Solve for $0°\leq x \leq 360°$

    $$\csc x - 2=0$$
  12. 12
    Solve for $0\leq x \leq 2\pi$

    $$\csc x + \sec x=0$$
  13. 13
    Solve for $0\leq x \leq 2\pi$

    $$2\cot x = -\sqrt 3\csc x$$

    ( trigonometry / trig )

$$e=mc^2$$