• Support PF! Buy your school textbooks, materials and every day products Here!

Help with domain question with g(f(x))

  • Thread starter mesa
  • Start date
  • #1
648
18

Homework Statement



If f(x)=√x and g(x)=√(x^2+1) what is the domain of g(f(x))?


The Attempt at a Solution



I cam up with (-∞,+∞) since the square root of a square is always positive, am I missing something here?
 

Answers and Replies

  • #2
648
18
Nevermind, just saw it lol
 

Related Threads on Help with domain question with g(f(x))

  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
5K
Replies
9
Views
630
  • Last Post
Replies
4
Views
1K
  • Last Post
2
Replies
28
Views
16K
  • Last Post
Replies
10
Views
15K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
7
Views
13K
Replies
5
Views
2K
Top