\(A=\frac{111111}{121212}+\frac{111111}{202020}+\frac{111111}{303030}\)
\(A=\frac{11}{12}+\frac{11}{20}+\frac{11}{30}\)
\(A=\frac{55}{60}+\frac{33}{60}+\frac{22}{60}\)
\(A=\frac{110}{60}=\frac{11}{6}\)
tại sao bạn nhấn lớp 0
10101.(\(\frac{5}{111111}+\frac{5}{222222}-\frac{4}{3.7.11.13.37}\))
A = \(\frac{2-\frac{2}{19}}{3-\frac{3}{19}}+\frac{\frac{2}{43}-\frac{2}{1943}}{\frac{3}{43}-\frac{3}{1943}}:\frac{4-\frac{4}{29}+\frac{4}{41}-\frac{4}{2941}}{5-\frac{5}{29}+\frac{5}{41}-\frac{5}{2941}}\)
Ba số a;b;c khác nhau và khác 0 thỏa mãn \(\frac{a}{b+c}=\frac{b}{a+c}=\frac{c}{a+b}\)
giá trị biểu thức \(P=\frac{a}{b}+\frac{b}{a}+\frac{a}{c}+\frac{c}{a}+\frac{b}{c}+\frac{c}{b}=\)
tính nhanh:
A=\(\frac{\frac{3}{7}-\frac{3}{17}+\frac{3}{37}}{\frac{5}{7}-\frac{5}{17}+\frac{5}{37}}+\frac{\frac{1}{2}-\frac{1}{3}+\frac{1}{4}-\frac{1}{5}}{\frac{7}{5}-\frac{7}{4}+\frac{7}{3}-\frac{7}{2}}\)
giải chi tiết nhé các bạn
A=\(\frac{\frac{2008}{2}+\frac{2007}{3}+\frac{2006}{4}+...+\frac{2008}{2009}}{\frac{2008}{1}+\frac{2007}{2}+\frac{2006}{3}+...+\frac{1}{2008}}\)
Đơn giản biểu thức sau
\(A=\frac{\frac{12}{13}+\frac{12}{131}-\frac{12}{1313}+\frac{12}{13131}}{\frac{15}{13}+\frac{15}{131}-\frac{15}{1313}+\frac{15}{13131}}\)
Cho \(A=\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{2016}\)
\(B=\frac{2015}{1}+\frac{2014}{2}+...+\frac{2}{2014}+\frac{1}{2015}\)
Tính \(\frac{A}{B}\)
Bài 1: Tính \(\frac{A}{B}\)biết rằng:
A=\(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{200}\)
B=\(\frac{1}{199}+\frac{2}{198}+\frac{3}{197}+...+\frac{198}{2}+\frac{199}{1}\)
Help: Cho A=\(\frac{1}{2^2}+\frac{1}{4^2}+\frac{1}{6^2}+\frac{1}{8^2}+\frac{1}{10^2}+\frac{1}{12^2}+\frac{1}{14^2}\).Hãy so sánh A với \(\frac{1}{2}\)
