1乘以1/2+1/2乘以1/3+1/3乘以1/2013乘以1/2014
=1-1/2+1/2-1/3+1/3x1/4+...+1/2013-1/2014
=1-1/2014
=2013/2014
很高兴为您解答,
公平起见,
请采纳最快回答的正确答案!
1乘以1/2+1/2乘以1/3+1/3乘以1/2013乘以1/2014
=1-1/2+1/2-1/3+1/3x1/4+...+1/2013-1/2014
=1-1/2014
=2013/2014
很高兴为您解答,
公平起见,
请采纳最快回答的正确答案!