问题
解答题
计算下列各题: (1)(
(2)
(3)
|
答案
(1)原式=(
)2-225
=5-4
=1;
(2)原式=3-2 3 3
=3-2
=1;
(3)原式=4
-2
+3 2 2 2
=
.7 2 2
计算下列各题: (1)(
(2)
(3)
|
(1)原式=(
)2-225
=5-4
=1;
(2)原式=3-2 3 3
=3-2
=1;
(3)原式=4
-2
+3 2 2 2
=
.7 2 2