若函数y=3x-2/4x+m的反函数是本身,求m 设函数f(x)=2x+3 g(x+2)=f(x) 求g(x)
若函数y=3x-2/4x+m的反函数是本身,求m 设函数f(x)=2x+3 g(x+2)=f(x) 求g(x)
y=f(x)是定义域为R的函数,则直线x=a与函数图象有几个交点
y=f(x)是定义域为R的函数,则直线x=a与函数图象有几个交点
数学人气:614 ℃时间:2019-09-27 05:42:11
优质解答
1.若函数y=(3x-2)/(4x+m)的反函数是本身,求m解 :由y=(3x-2)/(4x+m)得4xy-3x+my+2=0,因它的反函数是本身,故x,y互换,方程不变,∴m=-3.2.设函数f(x)=2x+3 ,g(x+2)=f(x) 求g(x)g(x)=f(x-2)=2(x-2)+3=2x-1...
我来回答
类似推荐
猜你喜欢
- 1__________(live) in the country is exciting .
- 2What's the weather like in winter?It's cold and ________.
- 3how do you think of the spring festival eve varriety show?
- 4I felt a deep _____(sad) after I heard the bad news.
- 5已知电阻r1=20欧,r2=30欧,若将他们串联起来接在电压为U的电源两端,则r1.r2上产生的电热之比为?若将他们并联起来接在电压为U的电源两端,则相同时间内R1、R2上产生的电热之比为?
- 6已知函数F(x)=x2+2ax+2是定义在[-5,5]上,求f(x)的最大值与最小值
- 7评价三国人物(一个人)的作文,800字
- 8There was a knock at the door.It was the second time someone ____ me this evening
- 9his father is sieeping in the room 变一般疑问句
- 10每半年末存款 2000 元,年利率 4%,每季复利计息一次,2 年末存款本息和为()万元.