2007^2008=1/(2007×2008)+1/(2007+1)+1/(2008+1)
=1/2007-1/2008+1/2008+1/2009
=1/2007+1/2009
=(2007+2009)/(2007×2009)
=4016/4032063
15题.定义一种运算“^”:x^y=1/xy+1/(X+1)+1/(Y+1),求2007^2008的值.
15题.定义一种运算“^”:x^y=1/xy+1/(X+1)+1/(Y+1),求2007^2008的值.
数学人气:771 ℃时间:2019-08-18 13:44:12
优质解答
我来回答
类似推荐