已知y=x^2+2(m-1)x+1在(-无穷大,2)上为减函数,求m的取值范
已知y=x^2+2(m-1)x+1在(-无穷大,2)上为减函数,求m的取值范
数学人气:705 ℃时间:2019-08-22 17:35:54
优质解答
所以-b/2a>=2,即1-m>=2,所以m小于等于-1
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