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13-112.
  1. Without using a calculator, solve each equation below in the domain 0 ≤ x ≤ 2π. Homework Help ✎

    1. sin(x) = −1

    2. 2cos(x) −1 = 0

    3. tan(x) = 1

    4. 2sin(x) = 4sin(x) + 1

x = π