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General solutions of trigonometric equations

  • sinx=a: x=sin−1a+2⁢π⁢n
  • or x=π−sin−1a+2⁢π⁢n
  • cosx=a: x=±cos−1a+2⁢π⁢n
  • tanx=a: x=tan−1a+π⁢n
  • n∈ℤ

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