Các câu hỏi tương tự
Tính \(\left(100+\frac{99}{2}+\frac{98}{3}+...+\frac{1}{100}\right):\left(\frac{1}{2}+\frac{1}{3}+...+\frac{1}{101}\right)-2\)
Lời giải rõ ràng nha
Tính giá trị biểu thức sau
\(\left(100+\frac{99}{2}+\frac{98}{3}+.....+\frac{1}{100}\right)\div\left(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+.....+\frac{1}{101}\right)-2\)
\(\left(100+\frac{99}{2}+\frac{98}{3}+...+\frac{1}{100}\right):\left(\frac{1}{2}+\frac{1}{3}+...+\frac{1}{101}\right)-2\)
\((100+ {99 {} \over 2}+{98 {} \over 3}+...+{1 {} \over 100})/({1 {} \over 2}+{1 {} \over 3}+{1 {} \over 4}+...+{1 {} \over 101})-2\)
Tính GTBT: \(\left(100+\frac{99}{2}+\frac{98}{3}+...+\frac{1}{100}\right):\left(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+....+\frac{1}{101}\right)-2\)
CHỈ CHO MÌNH CÁCH LÀM VỚI
Tính \(\left(100+\frac{99}{2}+\frac{98}{3}+...+\frac{1}{100}\right)\div\left(\frac{1}{2}+\frac{1}{3}+..+\frac{1}{101}\right)-2\)
tính tổng
S=1/2*3 - 2/3*4 +...+ 99/100*101 - 100/101*102
1)11-12+13-14+15-16+17-18+19-20+21-22+.........+99-100
2)2-4+6-8+......+1998-2000
3)-1+3-5+7-....+97-99
4)1+2-3-4+.........+97+98-99-100
5)1-2+3-4+.............+99-100
6)1+3-5-7+......+97-98-99+100
7)2100-299-298-..........22-2-1
8)1-4+7-10+........+307-310+313
tính
\(\left(\frac{1}{100}+\frac{99}{2}+\frac{98}{3}+...+100\right)\div\left(\frac{1}{2}+\frac{1}{3}+...+\frac{1}{100}\right)-2\)