(1)當(dāng)a=0時(shí),有x<1;
(2)當(dāng)a>0時(shí),有a(x-
2 |
a |
2 |
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∵1?
2 |
a |
a?2 |
a |
當(dāng)a>2時(shí)
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a |
2 |
a |
2 |
a |
當(dāng)0<a<2時(shí),有
2 |
a |
2 |
a |
(3)當(dāng)a<0時(shí),(x-
2 |
a |
2 |
a |
綜上,a=0時(shí),不等式的解集為{x|x<1};0<a<2時(shí),不等式的解集為{x|x<1或x>
2 |
a |
當(dāng)a>2時(shí),不等式的解集為{x|x<
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a |
2 |
a |