dimazp1980 =(2m)(-2n+2)/(4m)*(n+1)=m(1-n)/(4m)*(n+1)=(1-n)/4*(n+1) значение = (1-корень 2)/4*(38/13)=(1-корень2)/2*(19/13)

larisayou 3m²-m+3m-1+2m²-m-2m+1-5m²-5m+10m+10=4m+10
4m+10=4*0.375+10=11.5