Cho K = 1 + ( 1 + 2 ) + ( 1 + 2 + 3 ) + .... + ( 1 + 2 + 3 + .... + 2012 ) / 2012 x 1 + 2011 x 2 + 2010 x 3 + .. + 2 x 2011 + 1 x 2012 .
Tính K .
Những câu hỏi liên quan
Cho K:\(\frac{1+\left(1+2\right)+\left(1+2+3\right)+........+\left(1+2+3+........+2012\right)}{2012\text{x}1+2011\text{x}2+2010\text{x}3+.............+1\text{x}2012}\)
Tính K cộng với 2011
a)2^x+2^x+1+2^x+2+2^x+3=480
b)(1/2+1/3+...+1/2012+1/2013)*x=2012/1+2011/2+2010/3+..+2/2011+1/2012
tìm x,biet(1/2+1/3+.............+1/2012+1/2013).x=2012/1+2011/2+2010/3+......+2/2011+1/2012
Tìm x biết (1/2+1/3+...+1/2012+1/2013).x = 2012/1+2011/2+2010/3+...+2/2011+1/2012
tìm x biết ( 1/2 + 1/3 + ... + 1/2012 + 1/2013 ) .x = 2012/1 + 2011/2 + 2010/3 + ... + 2/2011 + 1/2012
tìm X biết : ( 1 / 2 + 1/3 + ........+ 1 /2012 + 1/2013 ) . x = 2012/1 + 2011/2 + 2010 /3 + .....+2/2011+1/2012
tìm x (1/2+1/3+...+1/2013) *x= 2012 +2011/2+2010/3+...+2/2011+1/2012
(1/2+1/3+....+1/2012+1/2013)*x=2012/1+2011/2+2010/3+...+2/2011+1/2012
\(\left(\frac{1}{2}+\frac{1}{3}+...+\frac{1}{2013}\right).x=\frac{2012}{1}+\frac{2011}{2}+\frac{2010}{3}+...+\frac{1}{2012}\)
Đúng 0
Bình luận (0)
Tìm x:
x . (1/2+1/3+1/4+. . .+1/2011+1/2012)
2012/1+2011/2+2010/3+2009/4+ . . . +2/2011+1/2012
=1