1.f(√x+1）=x+2√x
f(√x+1）=(√x+1)^2-1
f(x)=x^2-1
2.设f(x）=ax^2+bx+3
f(x+2)-f(x)=4a+4ax+2b=4x+2
a=1 b=-1
f(x）=x^2-x+3
1.f(√x+1）=x+2√x 2.f(x)为二次函数且f(0)=3,f(x+2)-f(x)=4x+2 求f(x)的解析式
1.f(√x+1）=x+2√x 2.f(x)为二次函数且f(0)=3,f(x+2)-f(x)=4x+2 求f(x)的解析式
数学人气：945 ℃时间：2020-05-06 02:58:32
优质解答
我来回答
类似推荐
猜你喜欢
- 1Why Michael Jackson is gone?
- 2以木为词组的一对反义词
- 3求y=ax-b/cx-d的反函数
- 4苏教版五年级下册语文第3单元的诵读与积累成语的意思
- 5如何理解文章的抒情性语言
- 6已知双曲线过点（3,-2）且与椭圆4x^2+9y^2=36有相同的焦点.求双曲线的标准方程；求以双曲线的右准线为...
- 7she was very against chemicles to kill weeds.
- 8正弦函数Y=sinX和余弦函数y=cosx在区间【0,派/2】内的交点坐标是?
- 9What do you know about Mary's _____(illness)?
- 10how much is this book (改为同义句）两句