Các câu hỏi tương tự
Tính nhanh : \(\frac{2017+\frac{1}{2016}+\frac{2}{2015}+\frac{3}{2014}+...+\frac{2015}{2}+\frac{2016}{1}}{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{2015}+\frac{1}{2016}}\)
Tính: (1*2015+2*2014+3*2013+...+2015*1)/(1*2+2*3+3*4+4*5+...+2015*2016)
1/1009+1/1010+.......+1/2016
1/1009 + 1/1010 +...........+ 1/2016
Tính (1-1/2)x(1-1/3)x(1-1/4)x( 1-1/5)x .........( 1-1/2015)x(1-1/2016)
A =\(\frac{2015+\frac{2014}{2}+\frac{2013}{3}+\frac{2012}{4}+\frac{2011}{5}+.....+\frac{1}{2015}}{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+......+\frac{1}{2016}}=\)
tìm A
1/1011+1/1010+1/1009+...+1/2
Tất cả trên
1010/1+1009/2+1008/3+...+1/1010
Nhanh Lên, em mình hỏi mà bí quá
Ai nhanh mình tích cho nha
Tính M , biết :
\(M=1+\frac{1}{2}\times\left(1+2\right)+\frac{1}{3}\times\left(1+2+3\right)+\frac{1}{4}\times\left(1+2+3+4\right)+...+\frac{1}{2016}\times\left(1+2+3+4+...+2015+2016\right).\)
Tính nhanh
c) C=(1 – 1/2) x ( 1 - 1/3) x (1 – 1/4) x (1 – 1/5) x (1 – 1/6) x ……….. x ( 1 - 1/2015 ) x ( 1- 1/2016)