问题
解答题
计算:(1)
(2)(
|
答案
(1)原式=
-(-1 30
+10 15
)×(-9 15
)1 2
=
-(-1 30
)×(-1 15
)1 2
=
-1 30 1 30
=0;
(2)原式=(
+1 8
-4 3
)×(-24)+111 4
=-3-32+66+1
=32.
计算:(1)
(2)(
|
(1)原式=
-(-1 30
+10 15
)×(-9 15
)1 2
=
-(-1 30
)×(-1 15
)1 2
=
-1 30 1 30
=0;
(2)原式=(
+1 8
-4 3
)×(-24)+111 4
=-3-32+66+1
=32.