Lim ( (3n-1)!+(3n+1)!)/[(3n)!·(n-1)] =lim ( (3n-1)!(1+3n(3n+1))/[(3n-1)!·3n·(n-1)]=
n-∞ n-∞
=lim( (1+3n(3n+1))/[·3n·(n-1)]=lim (9n²+3n+1)/(3n²-3n)=1/3
n-∞ n-∞
151*6=906
161*5=805
906-805=101
1% от 100 = (100/100)*1 = 1
1% от 200 = (200/100)*1 = 2
1% от 300 = (300/100)*1 = 3
1) 427741 + 42421 = 470162
2) 470162 - 429 = 469733