(-0.125)^12 * (-5/3)^7 * (-8)^13 * (-3/5)^9谢
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(-0.125)^12 * (-5/3)^7 * (-8)^13 * (-3/5)^9谢
(-0.125)^12 * (-5/3)^7 * (-8)^13 * (-3/5)^9
谢
(-0.125)^12 * (-5/3)^7 * (-8)^13 * (-3/5)^9谢
一共是12+7+13+9=41个负号 所以结果为负
(-0.125)^12 * (-5/3)^7 * (-8)^13 * (-3/5)^9
=-0.125^12 * 5/3^7 * 8^13 * 3/5^9
=-0.125^12 * 5/3^7 * 8^12 * 8 * 3/5^7 * 3/5 * 3/5
=-(0.125^12 * 8^12) * (5/3^7 * 3/5^7) * 8 * 3/5 * 3/5
=-1 * 1 * 8 * 3/5 * 3/5
=-72/25
(-0.125)^12 * (-5/3)^7 * (-8)^13 * (-3/5)^9
=[(-0.125)*(-8)]^12*(-8) * [(-5/3)*(-3/5)]^7 * (-3/5)^2
=1^12*(-8)*1^7* (9/25)
=-72/25