tìm x:\(\frac{32}{8.11}+\frac{32}{11.14}+\frac{32}{14.17}+...+\frac{32}{197.200}-x=\frac{1}{2}\)
F=32/8.11 +32/ 11.14 + 32/ 14.17+...+ 32/197.200
E 1/25.27+1/27.29+1/29.31 +...+1/73.75
G =15/90.94+15/94.98 +15/98.102 +....+15/146.150
H=10/56+10/140 +10/260+....+10/1400
TÍNH TỔNG SAU A=32/8.11+32/11.14+...+32/1997.2000
\(x-\left(\frac{3^2}{8.11}+\frac{3^2}{11.14}+.......+\frac{3^2}{1997.2000}\right)=\frac{-1}{2}\)
giúp mình với
bài 1:tìm x biết
\(\left(x-\frac{2}{3}\right):\frac{-3}{7}=\frac{-9}{11}\)
\(x:2+x:\frac{5}{2}+x:\frac{1}{3}=\frac{-18}{25}\)
\(x-\left(\frac{3^2}{8.11}+\frac{3^2}{11.14}+......+\frac{3^2}{1997.2000}\right)=\frac{-1}{2}\)
B=3/2.5+3/5.8+3/8.11+3/11.14
1/5.8+1/8.11+1/11.14|+...+1/605.608
2/5.8+2/8.11+2/11.14+....+2/95.98
tinh N=3/8.11 3/11.14 ... 3/197.200 ...
