tiny can't change the font size of the symbol such as \sum in equation - TeX - LaTeX Stack Exchange
TexMaths Homepage
fontsize - Larger font size in math display equation environment? - TeX - LaTeX Stack Exchange
fontsize - Reducing font size in equation - TeX - LaTeX Stack Exchange
Putting x or |x| in the denominator of equations 20 and 21 dramatically increase the size of the equation environment. Is there a way to manually change/limit the size so each box
Fractions and Binomials - Overleaf, Online LaTeX Editor