Can the number 1 be squared infinitely many times?

[rgtr]

I always thought the brackets are interchangable in the 2 examples. Do you have a vid or article that shows the difference?

 

[haruspex]

I always thought the brackets are interchangable in the 2 examples. Do you have a vid or article that shows the difference?

The parentheses tell the reader the order of execution of the operators.
a/(b/c) says to do b/c first, so a/(b/c)=(ac)/b, whereas (a/b)/c=a/(bc).
In LaTeX parentheses can be omitted when the font size makes it clear.
$\frac a{\frac bc}$ implies $\frac a{(\frac bc)}$ whereas $\frac {\frac ab}c$ implies $\frac {(\frac ab)}c$.

 

[SammyS]

I always thought the brackets are interchangable in the 2 examples. Do you have a vid or article that shows the difference?

Division is not associative. Neither is subtraction.
$(a/b)/c\ne a/(b/c)$

Addition and multiplication are associative.