Question

1.若x、y互为相反数,m、n互为倒数,求2002x+2001y+mny的值.(要有解题过程和解题思路)

Answer 1

1.2002x+2001y+mny

=2001x+2001y+x+y

=2001(x+y)+0

=2001*0+0

=0+0

=0

2.mx分之k

3.(1)22

(2)6+4(n-1)

*=乘号