Question

已知x分之一减y分之一等于2005,求分式2x加6016xy减2y 分之 -x加xy加y的值

Answer 1

1/x-1/y=2005

y-x=2005xy

(-x+xy+y)/(2x+6016xy-2y)

=[xy+(y-x)]/6016xy-2(y-x)]

=(xy+2005xy)/(6016-4010xy)

=2006/2006

=1