题目内容
(本题6分)已知关于的方程.
1.(1)如果此方程有两个不相等的实数根,求m的取值范围;
2.(2)在(1)中,若m为符合条件的最大整数,求此时方程的根.
1.(1)解:.
.··················································· 1分
∵该方程有两个不相等的实数根,
∴.·························································································· 2分
解得.
∴ m的取值范围是
2.(2)解:∵,
∴符合条件的最大整数是 .···························································· 4分
此时方程为,
解得.
∴方程的根为 ,.
解析:略
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