\(\frac{1}{2.4}+\frac{1}{4.6}+\frac{1}{6.8}+...........+\frac{1}{98.100}\)
\(=\frac{1}{2}-\frac{1}{4}+\frac{1}{4}-\frac{1}{6}+\frac{1}{6}-\frac{1}{8}+...+\frac{1}{98}-\frac{1}{100}\)
\(=\frac{1}{2}-\frac{1}{100}=\frac{49}{100}\)
cho mình nha!
tính nhanh
\(Q=\frac{5}{2.4}+\frac{5}{4.6}+\frac{5}{6.8}+...+\frac{5}{98.100}\)
Tính :
A = \(\frac{-1}{2.4}\)+ \(\frac{-1}{4.6}\)+\(\frac{-1}{6.8}\)+ ..... + \(\frac{-1}{98.100}\)
TÍNH NHANH
A=\(\frac{1}{2.4}+\frac{1}{4.6}+\frac{1}{6.8}+....+\frac{1}{28.30}\)
A=\(\frac{1}{2.4}\)+\(\frac{1}{4.6}\)+\(\frac{1}{6.8}\)+.....+\(\frac{1}{98.100}\)
Ai giải được mik tick cho nha
tính \(\frac{1}{2.4}+\frac{1}{4.6}+\frac{1}{6.8}+....+\frac{1}{100.102}\)
ai nhanh đúng tick
tính :
S= \(\frac{1}{2.4}+\frac{1}{4.6}+\frac{1}{6.8}+\frac{1}{8.10}\)
Tính \(\frac{1}{2.4}+\frac{1}{4.6}+\frac{1}{6.8}+...+\frac{1}{38.40}\)
Giải chi tiết
Tính nhanh:(1/2.4)+(1/4.6)+(1/6.8)+.....+(1/98.100)=
\(\frac{1}{2.4}+\frac{1}{4.6}+\frac{1}{6.8}+...+\frac{1}{200.202}\)
