2001X20031419882002 504503(1) = = 2002X141420021988X1008)2001X2002X   =10082016 =2 ==1008

Bài 1( 3 điểm ) :

2001x20031419882002

504503(1)

=

=

2002x141420021988x1008)2001x2002x  

=

10082016

=2

=

=

1008