题目内容
已知L1:2x+m2y+2m=0与L2:y=-3x+
,若两直线平行,则m的值为______.
| 6 |
∵L1:2x+m2y+2m=0与L2:y=-3x+
,两直线平行,
∴
=
≠-
∴m=±
,
m≠-
,
∴m=
故答案为:
| 6 |
∴
| 2 |
| 3 |
| m2 |
| 1 |
| 2m | ||
|
∴m=±
| ||
| 3 |
m≠-
| ||
| 3 |
∴m=
| ||
| 3 |
故答案为:
| ||
| 3 |
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题目内容
| 6 |
| 6 |
| 2 |
| 3 |
| m2 |
| 1 |
| 2m | ||
|
| ||
| 3 |
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| 3 |
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| 3 |
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| 3 |