Question

2006*2005-1/2004*2006+2005

Answer 1

2006*2005-1/2004*2006+2005

=4022030 - 168/167 + 2005

=4022028,994 + 2005

=4024033 , 994

Answer 2

2006*2005-1/2004*2006+2005

=2006*2005-1/(2005-1)*2006+2005

=2006*2005-1/2005*2006-2006+2005

=2006*2005-1/2005*2006-1

=1

Answer 3

=1 100% đúng