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Solve the equation sin (x° - 20°) = cos 42° for x, where 0 < x < 90. A. 62 B. 22 C. 68 D. 28

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  1. 9 August, 15:08
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    Sin (x - 20°) = cos 42°

    sin (x - 20°) = sin (90° - 42°)

    sin (x - 20°) = sin 48°

    x - 20° = 48°

    x = 48° + 20°

    x = 68°

    Answer: C) 68°
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