A与B互为相反数,X与Y互为倒数,M=-(-2),求XY/3M+A+B/2006的值
问题描述:
A与B互为相反数,X与Y互为倒数,M=-(-2),求XY/3M+A+B/2006的值
答
A与B互为相反数
A+B=0
X与Y互为倒数
XY=1
M=-(-2)=2
XY/3M+(A+B)/2006
=1/(3*2)+0/2006
=1/6+0
=1/6