Question

 n = \(\frac{1995\times1994-1}{1993\times1995+1994}=?\)

Answer 1

\(n=\frac{1995\times1994-1}{1993\times1995+1994}\)

\(n=\frac{1995\times\left(1993+1\right)-1}{1995\times1993+1994}\)

\(n=\frac{1995\times1993+1995\times1-1}{1995\times1993+1994}\)

\(n=\frac{1995\times1993+1994}{1995\times1993+1994}\)

\(n=1\)(vì TS = MS)

 

Answer 2

\(\frac{1995.1994-1}{1993.1995+1994}=\frac{1995.1994-1}{\left(1994-1\right)1995+1994}=\frac{1995.1994-1}{1994.1005-1995+1994}=\frac{1995.1994-1}{1994.1995-1}=1\)

Vậy n = 1