Trig

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Find the co terminal angle for 15pi/4

  • Trig -

    15π/4 = 675°
    which is co-terminal with 675-360 or 315°
    or 7π/4

    notice that 15π/4 - 2π = 7π/4

  • Trig -

    Nonnegative coterminal is (pi)/4
    Negative coterminal is -(pi)/4

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