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Thread: Trigonometric Equations

  1. November 9th 2010, 02:22 AM #1
    Ilsa
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    Question Trigonometric Equations

    Positive angles x and y are such that x+2y=300 degrees and tan y= 2 cos160 degrees. Find their values.
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  2. November 9th 2010, 06:45 AM #2
    teachermath
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    Did you applied tan() to your first equation?
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