minh ko biet xin loi bn nha!
minh ko biet xin loi bn nha!
minh ko biet xin loi bn nha!
minh ko biet xin loi bn nha!
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Các câu hỏi tương tự
\(\frac{1}{1X2}\)+ \(\frac{1}{2X3}\)+ \(\frac{1}{3X4}\)+ ... + \(\frac{1}{999X1000}\)+ 1
Giúp mk bài náy vs nhé mk tk cho
\(\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+\frac{1}{4x5}+..............+\frac{1}{8x9}=?\)
C=\(\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}.............+\frac{1}{2017x2018}\)
Tính nhanh:
\(1+\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+...+\frac{1}{2017x2018}\)
A=\(\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+...+\frac{1}{8x9}\)
\(\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+\frac{1}{4x5}+\frac{1}{5x6}+\frac{1}{6x7}+\frac{1}{7x8}+\frac{1}{8x9}+\frac{1}{9x10}\)
tính nhanh
\(\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+\frac{1}{4x5}+....+\frac{1}{99x100}\)
Tìm x, biết:
\(\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+........+\frac{1}{Xx\left(x+1\right)}=\frac{499}{500}\)
Ai đúng cho 3tick
1/1x2 + 1/2x3 + 1/3x4 + ...... + 1/999x1000 + 1 = ......?