问题
解答题
计算下列各题: (Ⅰ) (
(Ⅱ)
|
答案
(Ⅰ) 原式=(4-1)-2+[(
)3]2 3
+(2-3)-1 3
-[(2 3
)4]-3 2 1 4
=42+
+22-(2 3
)-13 2
=16+4+
-2 3 2 3
=20.
(Ⅱ)原式=
=aa 1 3 6 a
=a 4 3 6 a
=aa 2 3 a 1 6
-2 3
=a1 6
=1 2
.a
计算下列各题: (Ⅰ) (
(Ⅱ)
|
(Ⅰ) 原式=(4-1)-2+[(
)3]2 3
+(2-3)-1 3
-[(2 3
)4]-3 2 1 4
=42+
+22-(2 3
)-13 2
=16+4+
-2 3 2 3
=20.
(Ⅱ)原式=
=aa 1 3 6 a
=a 4 3 6 a
=aa 2 3 a 1 6
-2 3
=a1 6
=1 2
.a