ÃŤjr
ÃŤjr
29-09-2016
Mathematics
contestada
confirm that (f°g)(x)=(g°f)(x)=x
Respuesta :
caylus
caylus
29-09-2016
Hello,
It is enough to prove that g(x)=f(^-1)(x)
f(x): y=(2x+3)/(x+4)
f(^-1): x=(2y+3)/(y+4)
==>xy+4x=2y+3
==>y(x-2)=3-4x
==>y=(3-4x)/(x-2)
==>y=(4x-3)/(2-x)= g(x)
Answer Link
VER TODAS LAS RESPUESTAS ( 22+ )
Otras preguntas
how do I solve this 8x<64
A wave travels 40 meters across a field of grass in 4 minutes. What is the speed of the wave? 0.17 m/s 10 m/s 240 m/s 320 m/s
Friction is generated when _____ interact with each other on sliding surfaces..... solids ,molecules, forces ,fluids
What large scale event made the colonization of North America possible for Europeans? Question 2 options: A meteor strike Disease wiped out a vast majority of t
Casper and cecile are divorced this year. as part of the divorce settlement, casper transferred stock to cecile. casper purchased the stock for $25,000, and it
Can someone help me
When using the substitution method to solve a nonlinear system of equations, you should first see if you can _____ one variable in one of the equations in the s
How does the amount of substrate affect the reaction rate? As the amount of substrate increases the reaction rate ________. a. goes up and down at random b. dec
- regardless of how many colors you observed, explain why some pigments (in plants with more than one) move further than others.
What can affect the properties of a substance
