Các câu hỏi tương tự
Thực hiện phép tính:
\(\frac{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{2016}+\frac{1}{2017}}{\frac{2016}{1}+\frac{2015}{2}+\frac{2014}{3}+...+\frac{2}{2015}+\frac{1}{2016}}\)
Thực hiện phép tính :
a)A=\(\frac{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+..........+\frac{1}{2017}}{2017+\frac{2016}{2}+\frac{2015}{3}+.............\frac{1}{2016}}\)
b)B=\(\frac{-1^2}{1.2}.\frac{-2^2}{2.3}+..........+\frac{-100^2}{100.101}.\frac{-101^2}{101.102}\)
Giúp mình vs
cho A=\(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+.......+\frac{1}{2016}+\frac{1}{2017}\)
va B=\(\frac{2016}{1}+\frac{2015}{2}+\frac{2014}{3}+......+\frac{2}{2015}+\frac{1}{2016}\)
Tinh ti so \(\frac{A}{B}\)
Cho \(A=\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{2017};B=\frac{2016}{1}+\frac{2015}{2}+\frac{2014}{3}+...+\frac{1}{2016}\).CMR B/A là số nguyên
Tính
Xem chi tiết
a)A=\(\frac{\frac{1}{2}+\frac{1}{3}+...+\frac{1}{2012}}{\frac{2011}{1}+\frac{2010}{2}+\frac{2009}{3}+...+\frac{1}{2011}}\)
b)A =\(\frac{1}{2}+\frac{1}{3}+...+\frac{1}{2016}+\frac{1}{2017}\)và B = \(\frac{2016}{1}+\frac{2015}{2}+\frac{2014}{3}+...+\frac{2}{2015}+\frac{3}{2016}\)
Tính \(\frac{B}{A}\)
cho
\(P=1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{2015}-\frac{1}{2016}+\frac{1}{2017}\)
cần gấp ạ !
\(B=\frac{\frac{2016}{1}+\frac{2015}{2}+...+\frac{1}{2015}+\frac{1}{2016}}{\frac{1}{2}+\frac{1}{3}+...+\frac{1}{2017}}\)
tính kết quả
\(\frac{1}{2016}-\frac{1}{2016}.2015-\frac{1}{2015}.2014-\frac{1}{2014}.2013-...-\frac{1}{3}.2-\frac{1}{2}.1\)
\(\frac{1}{2016}-\frac{1}{2016}.2015-\frac{1}{2015}.2014-\frac{1}{2014}.2013-...-\frac{1}{3}.2-\frac{1}{2}.1\)
Tính nhanh biểu thức trên