F of G function question - Square root inside a square root?

  • Thread starter nukeman
  • Start date
  • #1
655
0

Homework Statement



The image has the question I don't quite understand!

sgri92.jpg



Homework Equations





The Attempt at a Solution



I understand how to get √(√2 - x) but I dont get how they end up with: 4√2 - x

?
 
Last edited:

Answers and Replies

  • #2
34,516
6,206

Homework Statement



The image has the question I don't quite understand!

sgri92.jpg



Homework Equations





The Attempt at a Solution



I understand how to get √(√2 - x) but I dont get how they end up with: 4√2 - x
Your notation is incorrect. This is what you wrote:
$$ \sqrt{\sqrt{2} - x}$$

What you should have written is
$$ \sqrt{\sqrt{2-x}}$$

Without using LaTeX, as I did, you could have written √(√(2 - x))

Do you see the difference?
 
  • #3
655
0
Your notation is incorrect. This is what you wrote:
$$ \sqrt{\sqrt{2} - x}$$

What you should have written is
$$ \sqrt{\sqrt{2-x}}$$

Without using LaTeX, as I did, you could have written √(√(2 - x))

Do you see the difference?
Ah yea, I see the difference. Gotta start writing in latex!

I still dont understand the problem as I pointed out in the picture. ?
 
  • #4
34,516
6,206
Write the expression in exponent form rather than radical form.
 

Related Threads on F of G function question - Square root inside a square root?

  • Last Post
Replies
4
Views
2K
Replies
11
Views
3K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
4
Views
11K
  • Last Post
Replies
17
Views
5K
  • Last Post
Replies
8
Views
1K
  • Last Post
Replies
7
Views
19K
  • Last Post
Replies
4
Views
667
Replies
4
Views
767
Replies
5
Views
9K
Top