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

AI Thread Summary
The discussion centers around confusion regarding the notation of a mathematical expression involving square roots. The original poster mistakenly wrote √(√2 - x) instead of the correct notation √(√(2 - x)). Clarification was provided that using proper notation is crucial for understanding the problem. The suggestion was made to express the equation in exponent form to aid comprehension. Proper notation and expression are essential for solving the problem effectively.
nukeman
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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 don't get how they end up with: 4√2 - x

?
 
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nukeman said:

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 don't 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?
 
Mark44 said:
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 don't understand the problem as I pointed out in the picture. ?
 
Write the expression in exponent form rather than radical form.
 

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