6.51.3 Can you answer these questions?

6.51.3.1 \foreach with animation in tikz
6.51.3.2 How to clip an image for beamer hand-outs
6.51.3.3 Why does this code need the tcolorbox package?
6.51.3.1 \foreach with animation in tikz

https://tex.stackexchange.com/landing/r/digest?cta=question&id=561347

I'm trying to modify the animation presented here Example: Sine and Cosine functions animation to include phase, so the rotation will start each time at different angle i.e, phase =[0, 45 ,-45] so I ... 
[tikz-pgf] [animate]
 
asked by Diana https://tex.stackexchange.com/landing/r/digest?cta=user&id=98778 1 vote
6.51.3.2 How to clip an image for beamer hand-outs

https://tex.stackexchange.com/landing/r/digest?cta=question&id=561569

I am using Beamer to produce slides.  Everything works fine but not for the hand-outs.  The problem is that the graphic file on the title page is larger than the page size.  How can this be fixed?  I ... 
[beamer] [graphics]
 
asked by user94293 https://tex.stackexchange.com/landing/r/digest?cta=user&id=94293 1 vote
6.51.3.3 Why does this code need the tcolorbox package?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=561578

Why does this code need the tcolorbox package to compile? 
\documentclass[]{article} 
\usepackage[most]{tcolorbox} 
\def\Image{\includegraphics[scale=0.2]{example-image.jpg}} 
\begin{document} 
\... 
[tcolorbox] [foreach] [includegraphics]
 
asked by Vincent Mia Edie Verheyen https://tex.stackexchange.com/landing/r/digest?cta=user&id=67761 1 vote