2013 * 2014 * (36 *47 -18 *19)
2013*2014*(36*47-18*94)=
2013 x 2014 x ( 36 x 47 - 18 x 94 ) = ?
2013 x 2014 x (36 x 47 -18 x94)
=2013 x 2014 x (1692-1692)
=2013 x 2014 x 0
=0
2013 x 2014 x ( 36 x 47 - 18 x 94 )
2013 x 2014 x ( 36 x 47 - 18 x 94 ) =
2013x2014x(36x47-18x94)=2013x2014x(1692-1692)=2013x2014x0=0
2013x2014x(36x47-18x94)=2013x2014x(1692-1692)=2013x2014x0=0
Câu 4:
2013 x 2014 x ( 36 x 47 - 18 x 94 )
Câu 4:
2013 x 2014 x ( 36 x 47 - 18 x 94 )
2013 x 2014 x ( 36 x 47 - 18 x 94 )
2013/2014*[21/47+19/251 / 11/13]*[1/1+5/7*7/15]
tinh nhanh
2013/2014*[21/47+19/25 / 11/13] * [1/3-57*7/15]