问题
解答题
计算 (1)3
(2)(
(3)(
|
答案
(1)原式=(3
-22
)+(2
-33
)3
=
-22
;3
(2)原式=(
)2-(3
)22
=3-2
=1;
(3)原式=2+3+1-1
=5.
计算 (1)3
(2)(
(3)(
|
(1)原式=(3
-22
)+(2
-33
)3
=
-22
;3
(2)原式=(
)2-(3
)22
=3-2
=1;
(3)原式=2+3+1-1
=5.