(本小题满分12分)解关于的不等式:.

(本小题满分12分)解关于的不等式:

答案

得,,  ……4分

时,不等式的解集为

时,不等式的解集为

时,不等式的解集为.……10分

综上,当时,不等式的解集为;当时,不等式的解集为;当时,不等式的解集为

……12分

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