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In Exercises 57-62, find all solutions to the equation. You do not need a calculator. 57. 4 cos- x - 4 cos x + 1

In Exercises 57-62, find all solutions to the equation. You do not need a calculator. 57. 4 cos- x - 4 cos x + 1 = 0 58. 2 sin x + 3 sin x + 1 = 0 59. sin20 - 2 sin 0 = 0 60. 3 sin / = 2 cos- 61. cos (sin x) = 1 62. 2 sin'x + 3 sin x = 2

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