计算(2/3)²º¹²×1.5²º¹¹×(-1)²º¹¹
问题描述:
计算(2/3)²º¹²×1.5²º¹¹×(-1)²º¹¹
答
(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
答
-3
答
上式=(2/3)²º¹¹×(2/3)×(3/2)²º¹¹×(-1)=-1×(2/3×3/2)²º¹¹×(2/3)=-2/3