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\(A=\dfrac{1995\times1994-1}{1993\times1995+1994}\)
\(A=\dfrac{1995\times\left(1993+1\right)-1}{1993\times1995+1994}\)
\(A=\dfrac{1995\times1993+1995-1}{1995\times1993+1994}\)
\(A=\dfrac{1995\times1993+1994}{1995\times1993+1994}\)
\(A=1\)
=1995*1994-1/(1994-1)*1995+1994
=1995*1994-1/1994*1995-1995+1994
=1995*1994-1/1994*1995-1
=1
1995 x 1996 - 1997 / 1995 x 1994 +1993 = 3982017,001
(1995x1996-1997)/(1995x1994-1993)
=(1995x1996)/(1995x1994-1993+1997)
=(1995x1996)/(1995x1994+4)
=(1995x(1995+1)/(1995x1994+4)
=(1995x1995+1995)/(1995x1994+4)
=(1995x1995+1995-4)/(1995x1994)
=(1995x1995+1991)/(1995x1994)
=...Tự giải tiếp nhé, phần sau giải thích hơi dài.
K mình nhé, cảm ơn các bạn.
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%luôn đó.
a) 2/5/7 = 2:5:7= 2/35
3/1/2 = 3: 1 : 2 = 3/2
Là : 3/2 : 35 x 2 = 3/35
b) \(\frac{1995\cdot1994-1}{1993\cdot1995+1994}=\frac{1995\cdot1993}{1993\cdot1995+1994}=\frac{1}{1994}\)