Friday
April 18, 2014

Homework Help: precalc

Posted by ANON on Sunday, September 30, 2012 at 2:09pm.

f(x)=2+4x-x^2 when x is less than 2

thus f-1(x)=2-sqrt(-x+6)

i need to show that f(f-1(x))=x, but i keep getting negative x...any help

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - find any stationary points of the function g(x) = (2x-3)square root of 5+...
calculus - prove that d/dx 4x .√(x + √x) = 6x+5 (x)1/2/√(x...
math,help,algebra I - I need help can someone help me get unstuck and let me ...
algebra,math,help - Use Property 2 to simplify each of the following radical ...
maths - Choose the option that gives the solution of the initial-value problem ...
Calculus (Please check my work!) - Suppose that y = f(x) = x^2 - 4x + 4. Then on...
math-Inverse functions - f(x)=-4x-2 & g(x)=5x-6. Find (f*g) and state domain. f(...
PreCalc - What is the real solutions of this equation? sqrt(2x+3)-sqrt(x+2)=2
exprxion - . Simplify the following expressions points) a. sqrt(20) + sqrt(5) b...
Math - Another crazy one... 3sqrt5y^5 divided by 6sqrt20xy For this 3 square ...

Search
Members