Find f+g, f-g, fg, and f/g, and their domains

[viberent]

for the pair of functions defined, find f+g, f-g, fg, f/g, and difed the domain of each

f(x)=sqrt (expression)x-1, g(x)=x^2+1

I am not sure where to begin

 

[pka]

Viberent, you have posted five problems.
But you have shown no effort whatsoever.
What have you done on any of these?
We can help on if we know where you are having trouble.
This is not a free homework service.

 

[stapel]

I am not sure where to begin

Unfortunately, we cannot provide the requested instruction within this environment. (The math volunteers can help students work through specific exercises, but this assistance requires that the students have at least a basic grasp of the underlying material, something you indicate is missing.)

Fortunately, there are just piles of great resources available online! :wink:

These should serve to explain functions and their domains and ranges:

. . . . .Google results for "functions"

These wil help you learn about function notation:

. . . . .Google results for "function notation"

Addition, subtraction, multiplication, and division are "operations", and these shuld help you learn how to do operations on functions:

. . . . .Google results for "function operations"

Once you have studied one or a few lessons in each topic area, so you have learned the basic terms and techniques, please attempt the exercise. If you get stuck, or are unsure of your steps or solutions, please reply showing all of your work and reasoning.

Thank you!

Eliz.