CMR:\(19^{1616}+17^{1818}⋮323\)
CMR:\(19^{1616}+17^{1818}⋮323\)
CMR:\(19^{1616}+17^{1818}⋮323\)
CMR:\(19^{1616}+17^{1818}⋮323\)
CMR:\(19^{1616}+17^{1818}⋮323\)
> , < , =
1313/1717.... 13/17
161616/202020.... 5/6
1414/1818.....7/8
1212/1616..... 1515/2424
1313/1717=13/17
=>1313/17 = 13/17
161616/202020 =16/20=4/5=24/30 ;5/6=25/30
=>161616/202020 <5/6
tính nhanh H = 1414 + 1515 + 1616 + 1717 + 1818 + 1919
1414+1515+1616+1717+1818+1919/2020+2121+2222+2323+2424+2525
Đề bài kiểu gì vậy?VIết rõ hơn đi
1414+1515+1616+1717+1818+1919
2020+2121+2222+2323+2424+2525
1/3 + 13/15 + 33/35 + 61/63 + 97/99
1717/1919*303/1818+17/19*1515/1818
So sánh: 1414+1515+1616+1717/1818+1919+2020+2121 va 2424/3636
So sánh 6262 / 7878 và 2424 / 3636
Vì 6262/7878 > 2424/3636
Nên 1414 + 1515 + 1616 + 1717 / 1818 + 1919 + 2020 + 2121 > 2424/3636