问题
解答题
(1)
(2)
(3)
(4)
(5)(
|
答案
(1)原式=3
-62
+52 2
=2
;2
(2)原式=2
+3;3
(3)原式=
+1-24
=2+1-2
=1;
(4)原式=72 24
=
;3
(5)原式=7-3-4
=0.
(1)
(2)
(3)
(4)
(5)(
|
(1)原式=3
-62
+52 2
=2
;2
(2)原式=2
+3;3
(3)原式=
+1-24
=2+1-2
=1;
(4)原式=72 24
=
;3
(5)原式=7-3-4
=0.