(1+1/1*3)*(1+1/2*4)*(1+1/3*5)*.*(1+1/2007*2009)
=(2/3)*(2/3) *(3/2)*(3/4) *(4/3)*(4/5)*.*(2008/2007)*(2008/2009)
=(2/3)*(2008/2009)
=4016/6027
(1+1/1*3)*(1+1/2*4)*(1+1/3*5)*.*(1+1/2007*2009)
1个回答
相关问题
-
1/1*3+3/3*5+1/5*7…1/2005*2007+1/2007*2009+1/2009*2011
-
1/1*2+1/2*3+1/3*4+...+1/2007*2008+1/2008*2009
-
计算:|1/2-1|+|1/3-1/2|+|1/4-1/3|+...+|1/2008-1/2007|+|1/2009-1
-
1+（-2）+3+（-4）+5+（-6）+.+2007+(-2008)+2009 1+(-2)+(-3)+4+5+(-6
-
计算（1+1/1×3）(1+1/2×4)(1+1/3×5)……(1+1/2006×2008)(1+1/2007×2009
-
计算：（1+[1/1×3]）×（1+[1/2×4]）×（1+[1/3×5]）×…×（1+[1/2007×2009]）．
-
1/(√2009+√2008)+1/(√2008+√2007)+.+1/(√3+√2)+1/(√2+1)
-
(1-1/2009)(1-1/2008)(1-1/2007)……（1-1/3）（1-1/2）
-
(1/2009-1)*(1/2008-1)*(1/2007-1)*……*(1/3-1)*(1/2-1)
-
|1/2009-1/2008|+|1/2008-1/2007|+……+|1/3-1/2|+|1/2-1|=?