试确定实数m的取值范围,使幂函数y=（m2-m+1）x的（2m-4）次的图像在第一象限内单调递减.
人气：491 ℃ 时间：2020-03-20 18:41:42
解答
m²-m+1=(m-1/2)²+3/4>0
则x^(2m-4)当x>0递减
所以指数小于0
m
推荐
猜你喜欢
- happiness is for everyone.求译!
- 写小数时,整数部分仍按( )的写法,整数部分是0的要写( ).
- 《人民解放军百万大军横渡长江》一文是按什么顺序报道三路军的渡江作战的?为什么这样安排顺序?
- 屏风,纳凉,帷幕,缓冲,造型,伧俗、雅俗之别造句
- To turn your dream into reality,you should first ______the hard life here which you has not got used to so far
- 足球循环赛中,红队胜黄队,比分为4:1,黄队胜蓝队,比分为1:0,蓝队胜红队,比分为1:0,算各队的净胜球数.
- 2.2*(-2.1)+1.21*4.2-2.1*0.22简算!
- it took him three hours to clean his bedroom的同义句
