若函数f(2x)=-2x^2+5x-7,则f(2)=
人气:206 ℃ 时间:2020-05-30 08:05:01
解答
若函数f(2x)=-2x²+5x-7
那么f(2)=f(2*1)=-2*1²+5*1-7=-2+5-7=-4
如果不懂,请追问,祝学习愉快!
推荐
猜你喜欢
- if the god of love has not fallen
- 一架飞机飞行于两城市之间,顺风需5小时30分钟,逆风需6小时,已知风速为每小时24km,则飞机
- 已知三角形ABC中,顶点A(2,2),边AB上中线CD方程为X+Y=0
- 青玉案 元夕众里寻他千百度,蓦然回首,那人却在,灯火阑珊处.是怎样一种怎样的境界
- you were nice to think of us in such a thoughtful
- 1.压路机的滚筒是一个圆柱体,它的底面直径是2米,长3米,它每滚动一周能压多大面积的路?
- ( )of the girls plays tennis well.A
- 1.-My name is Jack.My father and mother have six children.Half are the boys and half girls.How many brothers and sisters