\(A=\dfrac{1995\times1994-1}{1993\times1995+1994}\)

\(A=\dfrac{1995\times\left(1993+1\right)-1}{1993\times1995+1994}\)

\(A=\dfrac{1995\times1993+1995-1}{1995\times1993+1994}\)

\(A=\dfrac{1995\times1993+1994}{1995\times1993+1994}\)

\(A=1\)

mik cần gấp

(1995 × 1994 - 1)/(1993 × 1995 + 1994)

= 3978029/3978029

= 1

\(=\dfrac{1994\left(1994+1\right)-1}{1994^2-1+1994}=\dfrac{1994^2+1993}{1994^2+1993}=1\)

=3980022,999

=1995*1994-1/(1994-1)*1995+1994

=1995*1994-1/1994*1995-1995+1994

=1995*1994-1/1994*1995-1

=1

1995 * 1994 - 1 / 1993 * 1995 + 1994

= 1995 * 1994 - 1 / ( 1994 -1 ) * 1995 + 1994

= 1995 * 1994 - 1 / 1994 * 1995 - 1995 + 1994

= 1995 * 1994 - 1 / 1994 * 1995 - 1

= 1

nhấn đúng cho mk nha

Tính nhanh giá trị biểu thức :

   1995 x 1994 - 1 / 1993 x 1995 + 1994

= 1995 x 1994 - 1 /  ( 1994 - 1 ) x 1995 + 1994

= 1995 x 1994 - 1 / 1994 x 1995 - 1995 + 1994

= 1995 x 1884 - 1 / 1994 x 1995 - 1

= 1

bằng 1 nhé bạn

bằng 1

1995 x 1996 - 1997 / 1995 x 1994 +1993 = 3982017,001

3982017,001 nhé bạn >.<

day la bai tinh nhanh ma ban

Ta có \(\frac{1995x1993-18}{1975+1993x1994}\)

      =\(\frac{1993x1994+1993-18}{1975+1993x1994}\)

     =\(\frac{1975+1993x1994}{1975+1993x1994}\)

     =\(1\)

b)Ta có \(\frac{1996x1995-996}{1000+1996x1994}\)

              =\(\frac{1996x1994+1996-996}{1000+1996x1994}\)

              =\(\frac{1000+1996x1994}{1000+1996x1994}\)

             =\(1\)

A = 1995 x 1993 - 18 / 1975 + 1993 x 1994

= (1994 + 1) x 1993 - 18 / 1975 + 1993 x 1994

= 1994 x 1993 + 1993 - 18 / 1975 + 1993 x 1994

= 1994 x 1993 + 1975 / 1975 + 1993 x 1994

= 1

A = 1995 x 1993 - 18 / 1975 + 1993 x 1994= (1994 + 1) x 1993 - 18 / 1975 + 1993 x 1994= 1994 x 1993 + 1993 - 18 / 1975 + 1993 x 1994= 1994 x 1993 + 1975 / 1975 + 1993 x 1994= 1

A = 1995 x 1993 - 18/1975 + 1993 x 1994

   = ( 1994 + 1 ) x 1993 - 18/1975 + 1993 x 1994

  = 1994 x 1993 + 1993 - 18/1975 + 1993 x 1994

  = 1994 x 1993 + 1975/1975 + 1993 x 1994

  = 1