Question

tính nhanh A= 4047991- 2010 x 2009/ 4050000-2011 x 2009

Answer 1

\(A=\frac{4047991-2010.2009}{4050000-2011.2009}\)

\(\Rightarrow A=\frac{404791-2010.2009}{4047911+2009-2011.2009}\)

\(\Rightarrow A=\frac{4047911-2010.2009}{4047911-2010.2009}\)

\(\Rightarrow A=1\)

Vậy A = 1

~Study well~

#๖ۣۜNamiko#

Answer 2

#)Giải :

\(A=\frac{4047991-2010.2009}{4050000-2011.2009}=\frac{407991-2010.2009}{4047991+2009-2011-2009}=\frac{407991-2010.2009}{407991-2010.2009}=1\)

            #~Will~be~Pens~#

Answer 3

hình như sai r

 

Answer 4

Sai ròi