Các câu hỏi tương tự
-3/2.3-3/3.4-3/4.5-3/5.6-3/6.7
Tính nhanh :
1/2.3 + 1/3.4 + 1/4.5 + 1/5.6 + 1/6.7 + .... + 1/200.201
tính nhanh :
a) 1/2.3 + 1/3.4 + 1/4.5 + 1/5.6 + 1/6.7 + ... + 1/98.99 + 1/99.100
b) 201.204+1/204.203-407
CÁM ƠN !
1/1.2+1/2.3+1/3.4+.........+1/14.15+1/15.16
giup minh voi nhanh len nhe minh tick cho nha
Tính B= \(\dfrac{1}{3.4}\)-\(\dfrac{1}{4.5}\)-\(\dfrac{1}{5.6}\)-\(\dfrac{1}{6.7}\)-\(\dfrac{1}{7.8}\)-\(\dfrac{1}{8.9}\)-\(\dfrac{1}{9.10}\)
tinh tong A=1.2+2.3+3.4+4.5+5.6+...+2016.2017
1.2+2.3+3.4+4.5+5.6+...+99.100=???
có ai muốn kb với mk ko mk buồn quá
3.4+3.4+5.6+7.8-2.3=
a, 1313/1212:x=1/1.2+1/2.3+1/3.4+1/4.5+1/5.6