题目内容
已知集合M={
|
=(2t+1,-2-2t),t∈R},N={
|
=(3t-2,6t+1),t∈R},则M∩N______.
a |
a |
b |
b |
由题意得M∩N中的向量满足
=
,(2t+1,-2-2t)=(3t-2,6t+1),
∴2t+1=3t-2,-2-2t=6t+1,
∴t无解,故 M∩N=∅,
故答案为∅.
a |
b |
∴2t+1=3t-2,-2-2t=6t+1,
∴t无解,故 M∩N=∅,
故答案为∅.
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