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Yes, Consider Un = (-1)^n*n = -1, 2, -3, 4, ...
6; alternating decreasing series, by twos
One conclusion that can be drawn is an alternating: 34 10 33 9 and so on
alternating quantity is a quantity that is alternating
AC, or alternating current.AC, or alternating current.AC, or alternating current.AC, or alternating current.