Các câu hỏi tương tự
B=1/1.2.3+1/2.3.4+...+1/8.9.10
1/1.2.3+1/2.3.4+...+1/8.9.10
Tính: 1/1.2.3+1/2.3.4+1/3.4.5+.........+1/8.9.10
(1/1.2.3+1/2.3.4+...+1/8.9.10).x=22/45
(1/1.2.3+1/2.3.4+...+1/8.9.10).x=23/45
(\(\dfrac{1}{1.2.3}\)+\(\dfrac{1}{2.3.4}\)+...+\(\dfrac{1}{8.9.10}\)).x=\(\dfrac{23}{45}\)
\(\dfrac{1}{1.2.3}\)+\(\dfrac{1}{2.3.4}\)+....+\(\dfrac{1}{8.9.10}\)x=\(\dfrac{44}{45}\)
Tìm x:
(1/1.2.3+1/2.3.4+...+1/8.9.10).x=22/45
tìm x biết:(1/1.2.3+2/2.3.4+...+1/8.9.10).x=22/45