问题
解答题
(1)
(2)
(3)|3-
|
答案
(1)原式=
=12÷24
=1 2
;2 2
(2)原式=a
+2aa
=3aa
;a
(3)原式=|3-2
|+8×(3
)2-4×3 2
=23
-3+6-43
=3-23
.3
(1)
(2)
(3)|3-
|
(1)原式=
=12÷24
=1 2
;2 2
(2)原式=a
+2aa
=3aa
;a
(3)原式=|3-2
|+8×(3
)2-4×3 2
=23
-3+6-43
=3-23
.3