6.15.3 Can you answer these questions?

6.15.3.1 Export mutli-pdf directly

https://tex.stackexchange.com/landing/r/digest?cta=question&id=538404

I have a big latex beamer project that includes multi-chapters. I need to export each chapter in a separate pdf file. 
Do we have any way to export each include file in a separate PDF? 
... 
[beamer] [xetex]
 

asked by Moustafa Mahmoud https://tex.stackexchange.com/landing/r/digest?cta=user&id=178282 1 vote

6.15.3.2 Assuming a line is tangent to a circle in tkz-euclide

https://tex.stackexchange.com/landing/r/digest?cta=question&id=538367

\documentclass[10pt]{article} 
\usepackage[a5paper]{geometry} 
\usepackage{tkz-euclide} 
\usepackage{float} 
\usepackage{amsthm,amssymb, amsmath, amsfonts} 
\usetikzlibrary{math, arrows, positioning,  ... 
[tkz-euclide]
 

asked by furfur https://tex.stackexchange.com/landing/r/digest?cta=user&id=151922 1 vote

6.15.3.3 How do cross out text in math mode?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=537955

Since \sout  does not work in math mode, what can I use instead?  I don't want the diagonal strikeout like with cancelf 
[math-mode] [text-decorations] [cancel] [strikeout]
 

asked by Hao S https://tex.stackexchange.com/landing/r/digest?cta=user&id=63578 1 vote

answered by M. Al Jumaily https://tex.stackexchange.com/landing/r/digest?cta=user&id=167081 0 votes