Question

помогите пж. упростить

Answer 1

$( frac{m}{m+1}+1) : (1-frac{3m^2}{1-m^2} )= frac{m+m+1}{m+1} : frac{1-m^2-3m^2}{1-m^2} = frac{2m+1}{m+1} * frac{1-m^2}{1-4m^2}= \ =frac{2m+1}{m+1} * frac{(1-m)(1+m)}{(1-2m)(1+2m)} = frac{1-m}{1-2m}$