问题
解答题
(
[1-(
(1-
|
答案
(1)
÷(2 5
+2 5
)3 4
=
÷2 5
,23 20
=
;8 23
(2)(
+1 2
-1 4
)×121 6
=
×12+1 2
×12-1 4
×12,1 6
=6+3-2,
=7;
(3)
×9 15
+14 17
×8 17 14 15
=
×14 15
+9 17
×8 17
,14 15
=(
+9 17
)×8 17
,14 15
=1×
,14 15
=
;14 15
(4)[1-(
+2 3
)×1 5
]÷1 13 7 10
=[1-
×13 15
]×1 13
,10 7
=[1-
]×1 15
,10 7
=
×14 15
,10 7
=
;4 3
(5)(1-
-1 2
-1 4
-1 8
-1 16
-1 32
)÷1 64 1 64
=(1-
-1 2
-1 4
-1 8
-1 16
-1 32
)×64,1 64
=1×64-
×64-1 2
×64-1 4
×64-1 8
×64-1 16
×64-1 32
×64,1 64
=64-32-16-8-4-2-1,
=1.