计算(2/3)²º¹²×1.5²º¹¹×(-1)²º¹¹
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计算(2/3)²º¹²×1.5²º¹¹×(-1)²º¹¹
计算(2/3)²º¹²×1.5²º¹¹×(-1)²º¹¹
计算(2/3)²º¹²×1.5²º¹¹×(-1)²º¹¹
上式=(2/3)²º¹¹×(2/3)×(3/2)²º¹¹×(-1)=-1×(2/3×3/2)²º¹¹×(2/3)=-2/3
-3
(2/3)²º¹²×1.5²º¹¹×(-1)²º¹¹
=(2/3)²º¹¹×(2/3)×(3/2)²º¹¹×(-1)
=-1×(2/3×3/2)²º¹¹×(2/3)
=-2/3