Question

So sánh

A=2009.2011 và B=2010²

Answer 1

A = 2009 . 2011 = 4040099

B = 2010 . 2010 = 4040100

VÌ 4040100 > 4040099 nên A > B

=> A > B

Answer 2

A=2009.2011

=2009.(2010+1)

=2009.2010+2009

B=2010²

=2010.2010

=2010.(2009+1)

=2010.2009+2010

Vì 2009.2010+2009 < 2010.2009+2010 nên 2009.2011 < 2010²

Answer 3

a > b Nha ban