Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2012-10-21 12:19:22

skylor blay
Guest

(fog)(x), (fog)(2)

. let f(x) = Vx-4 , g(x) = (x+1)^2, find (f o g)(x) and (f o g)(2)

also

let f(x) = 2x-4, g(x) = x^2+1 find (gof) I got 2x^2 - 15 and was incorrect

#2 2012-10-21 15:04:41

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 105,307

Re: (fog)(x), (fog)(2)

Hi;

. let f(x) = Vx-4 , g(x) = (x+1)^2, find (f o g)(x) and (f o g)(2)

I am assuming

let f(x) = 2x-4, g(x) = x^2+1 find (gof) I got 2x^2 - 15 and was incorrect


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Online

#3 2012-10-21 15:15:45

skylor
Guest

Re: (fog)(x), (fog)(2)

f(x) = √ (sqrt) x-4 sorry

#4 2012-10-21 15:20:25

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 105,307

Re: (fog)(x), (fog)(2)

Okay I will adjust post #2.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Online

Board footer

Powered by FluxBB