Why X^(1/2) = root X and X^(-1/2) = 1/root x?

[mmm4444bot]

The link is below where I found the indexed radicals signs ∛ and ∜
http://usefulwebtool.com/en/math-keyboard.php

Thanks for posting this link; using that web tool is much easier than Microsoft's clumsy, limited Character Map.

I also posted this link, in your other thread.

 

[Indranil]

Thanks for posting this link; using that web tool is much easier than Microsoft's clumsy, limited Character Map.

I also posted this link, in your other thread.

Thanks.