已知P:|1−x−13|≤2,Q:x2−2x+1−m2≤0(m>0),又知非P是非Q的必要非充分条件,则m的取值范围是_.
题目
答案
由|1-x−13|≤2,得|x-4|≤6,解得-2≤x≤10.即P:-2≤x≤10.由x2-2x+1-m2≤0,得[x-(1-m)][x-(1+m)]≤0,∵m>0,∴1-m<1+m,∴不等式的解为1-m≤x≤1+m,即Q:1-m≤x≤1+m.∵非P是非Q的必要不充分条件,∴...
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
- 出师表作者说了这么多为什么结尾却说今当远离,临表涕零,不知所言
- Look what is the girl do改错
- Sandy can play computer games well now.(用three years age替换now改写句子)
- you can it run away from your future,you have to run to it,No matter how far it is
- 在《爱莲说》中,如何理解牡丹的衬托作用是正衬呢?
- ( )project Hope is an organization__raises money to build schools and buy books for poor children
- 电路计算公式请高手解惑 P=UI=U²/R U/R=I
- “背包”一词的‘背’字的声调该读几声?
- .He is w____ in maths.His maths teacher often helps him.
- 英语连词成句 the,thief,follows,her,street,the,along
热门考点