定义新运算△:X△Y=1/XY+(X+1)/1+1/(Y+M) 已知2△1=3/4
问题描述:
定义新运算△:X△Y=1/XY+(X+1)/1+1/(Y+M) 已知2△1=3/4
(1)M的值 (2)2007△2008
答
1、X△Y=1/XY + (X+1)/1+ 1/(Y+M)2△1=1/(2×1)+(2+1)/1+1/(1+M)=1/2+3+1/(1+M)=7/2+1/(1+M)=3/4即7/2+1/(1+M)=3/4m= - 15/112、2007△2008=1/(2007×2008)+(2007+1)/1+1/(2008-15/11)=1/(2007×2008)+2008+1/...