If M1 = 180 lb # ft, M2 = 90 lb # ft, and M3 = 120 lb #
Chapter 4, Problem 4-83(choose chapter or problem)
If \(M_1 = 180\ lb \cdot ft\), \(M_2 = 90\ lb \cdot ft\), and \(M_3 = 120\ lb \cdot ft\), determine the magnitude and coordinate direction angles of the resultant couple moment.
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