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Tính \(T=\frac{1}{2}+\frac{5}{6}+\frac{11}{12}+...+\frac{89}{90}+\frac{109}{110}-\frac{10}{11}\)
Tính T , biết :
\(T=\frac{1}{2}+\frac{5}{6}+\frac{11}{12}+...+\frac{89}{90}+\frac{109}{110}+\frac{10}{11}.\)
tính tổng
A = 2,012 x 26,2 x 3,88 x 20,12 + 17,5 x 4,024
T = \(\frac{1}{2}\)+ \(\frac{5}{6}\)+ \(\frac{11}{12}\)+ ....... + \(\frac{89}{90}\)+ \(\frac{109}{110}\)+ \(\frac{10}{11}\)
18 tháng 6 2015 lúc 7:53
\(\frac{11}{12}+\frac{19}{20}+\frac{29}{30}+\frac{41}{42}+\frac{55}{56}+\frac{71}{72}+\frac{89}{90}+\frac{109}{110}=?\)
Tính nhanh: \(\frac{1}{2}+\frac{5}{6}+\frac{11}{12}+...+\frac{71}{72}+\frac{89}{90}=?\)
\(\frac{1}{2}+\frac{5}{6}+\frac{11}{12}+...+\frac{89}{90}\)
Giups mk với,mk can gap
1,Tính nhanh
\(\frac{1}{2}+\frac{5}{6}+\frac{11}{12}+\frac{19}{20}+\frac{29}{30}+\frac{41}{42}+\frac{55}{56}+\frac{71}{72}+\frac{89}{90}\)
Tính tổng :
\(A=\frac{1}{2}+\frac{5}{6}+\frac{11}{12}+\frac{19}{20}+\frac{29}{30}+\frac{41}{42}+\frac{55}{56}+\frac{71}{72}+\frac{89}{90}\)
tính nhanh :
\(\frac{1}{2}+\frac{5}{6}+\frac{11}{12}+\frac{19}{20}+\frac{29}{30}+\frac{41}{42}+\frac{55}{56}+\frac{71}{72}+\frac{89}{90}\)