Friday

August 22, 2014

August 22, 2014

Posted by **marie** on Saturday, March 23, 2013 at 10:34am.

a. find f(g(x))

b. find g(f(x))

c. determine whether the functions f and g are inverse of each other.

I have no clue where to even begin!

- math -
**Steve**, Saturday, March 23, 2013 at 1:41pmf(g) = g^3-2 = (3sqrt(x+2))^3-2 = 27(x+2)sqrt(x+2)-2

g(f) = 3sqrt(f+2) = 3sqrt(x^3) = 3xsqrt(x)

if they are inverses, g(f) = f(g) = x

Obviously they are not inverses

- math -
**marie**, Saturday, March 23, 2013 at 3:42pmthanks alot

**Related Questions**

pre calculus - consider the functions f(x)=x^3-3 and g(x)=3 sqrt x+3: a. find f(...

College Algebra! help! - Consider the following functions f(x)= (7x+8)/(x+3) and...

Consider the functions - Consider the functions f(x)= 5x+4/x+3(This is a ...

Calculus - Find the sum and difference functions f + g and f – g for the ...

math-Inverse functions - f(x)=-4x-2 & g(x)=5x-6. Find (f*g) and state domain. f(...

Math - Inverse Functions - Find the inverses of the following functions. y = 3(x...

Algebra-Functions - Could you please check my answers and help me with two ...

Calculus - Math questions, please help me? :(? Find the composite functions f o ...

inverse - find f^-1 (x). (this is asking me to find the inverse) f(x) = -(x-2)^2...

Math - Functions - For the real valued functions f(x) - |x| - 4 and g(x) = sqrt(...