题目内容
1
与
的和除以它们的差的2倍,商是多少?
| 3 |
| 4 |
| 1 |
| 2 |
(1
+
)÷[(1
-
)×2],
=(1
+
)÷[(1
-
)×2],
=
÷
,
=
×
,
=0.9;
答:商是0.9.
| 3 |
| 4 |
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 2 |
=(1
| 3 |
| 4 |
| 2 |
| 4 |
| 3 |
| 4 |
| 2 |
| 4 |
=
| 9 |
| 4 |
| 10 |
| 4 |
=
| 9 |
| 4 |
| 4 |
| 10 |
=0.9;
答:商是0.9.
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