Tính A= \(\frac{\left(2000x4+1995+2001x1995\right)}{\left(1995x495+1995x5+1995x3\right)}\)
A.\(\frac{2004x2005+2006x6-6}{2005x1997+4x2005}\) \(\frac{1999x2000+2001x5-5}{504x2000+500x2000}\)
B.\(\frac{2003x4+1998+2001x2002}{2002+2002x502+500x2002}\) \(\frac{2000x4+1995+2001x1995}{1995x495+1995x5+1995x3}\)
C.\(\frac{72:2x574+286x2x64}{4+4+8+12+20+...+220}\) \(\frac{72+36x2+24x3+18x4+12x6+168}{2+2+4+6+...+512+1024}\)
Tính nhanh
98 x 1995 + 1995 + 1995
Tinh
1995*1996-1000/1995*1995+995
(Yx0,5+2193):1995+(600+2193):1995
1995*1997-1/1996*1995+1994
\(\dfrac{1995\cdot1996-1000}{1995\cdot1995+995}\)Tính nhanh
A=1995 x 1994 - 1/1993 x 1995 + 1994
1995 x 1996 - 1997 / 1995 x 1994 +1993
1988*1996+1997+1995/1997*1996-1995*1996