1996*1997+1998*3+1994 trên 1997*1999-1997*1997
tính nhanh : 1996*1997+1998*3+1994/1997*1999-1997*1997
1996 x 1997 + 1998 x 3 + 1994 / 1997 x 1999 - 1997 x 1997
= 1996 x 1997 + ( 1997 + 1 x 3 ) + 1994 / 1997 x 1999 - 1997 x 1997
= 1996 x 1998 + 1 x 3 + 1994 / 1997 x 1999 - 1997 x 1997
= 3988008 + 3 + 1994 / 1997 x 1999 - 1997 x 1997
= 3990005 / 1997 x 1999 - 1997 x 1997
= 3990005 / ( 1999 - 1997 ) x 1997
= 3990005 / 3994
đáp án bằng : 1,109629008840861 nha bạn mk nha
1996*1997+1998*3+1994/1997*1999-1997*1997 tinh nhanh
1996 x 1997 + 1998 x 3 + 1994 / 1997 x 1999 - 1997 x 1997
Tính nhanh :
( 1996 * 1997 + 1998 * 3 ) : ( 1997 * 1999 - 1997 * 1997 )
( 1996 * 1997 + 1998 * 3 ) : ( 1997 * 1999 - 1997 * 1997 ) = 999,500751
(25+3*75-250) : (1999*1998*1997+1996*1995*1994) = ?
=(25+3*75-250):(1999*1998*1997*1996*1995*1994)
=(25+225-250):(1999*1998*1997*1996*1995*1994)
=(250-250):(1999*1998*1997*1996*1995*1994)
=0:(1999*1998*1997*1996*1995*1994)
=0
1996 x 1997 + 1998 x 3
1997 x 1999 + 1997 x 1997
1991*1992*1993*1994*1995*1996*1997*1998*1999
1991*1992*1993*1994+1995*1996*1997*1998*1999
ket qua cua day tinh 1992*1993*1994*1994+1995*1996*1997*1998*1999