# Math

Here are some math documents I have made that might help you. You can edit, improve, and repost these as much as you like.

$\def \l {\left} \def \r {\right} \def \f {\frac} \def \b#1{\l(#1\r)} \def \root [#1]#2{\sqrt[\leftroot{2}\uproot{2}\scriptstyle #1]{#2}} \def \sroot [#1]#2{\sqrt[\large #1]{#2}} \def \cbrt #1{\root[3]{#1}} \def \scbrt #1{\sroot[3]{#1}} \DeclareMathOperator{\acoth}{acoth}$

Converting $ax^3+bx^2+cx+d$ to $t^3+pt+q$

Cubic Formula 1

Cubic Formula 2

Show that $\sum\limits_{i=2}^n \acoth i = \f{1}{2} \ln \f{n(n+1)}{2}$

Denesting $\sqrt{x\pm\sqrt{y}}$

Find Other $\scbrt{a}$ from Known $\scbrt{a}$

Square Root of Any Complex Number

What are the odds?