\(\frac{2012+2013\cdot2014}{2014\cdot2015+2016}\)
\(\frac{2012+2013\cdot2014}{2014\cdot2015-2016}\)
\(\frac{2012+2013\cdot2014}{2014\cdot2015-2016}\)
2012+2013.2014
2014.2015-2016
2012+2013.2014
2014.(2013+2)-2016
2012+2013.2014
2014.2013+4028-2016
2012
2012
\(\frac{2012+2013\cdot2014}{2014\cdot2015-2016}\)
Mọi người giúp em với ạ!
\(\frac{2012+2013.2014}{2014.2015-2016}\)
\(=\frac{2013.\left(2015-1\right)+2012}{\left(2013+1\right).2015-2016}\)
\(=\frac{2013.2015-2013+2012}{2013.2015+2015-2016}\)
\(=\frac{2013.2015-1}{2013.2015+\left(-1\right)}\)
\(=\frac{2013.2015-1}{2013.2015-1}\)
\(=1\)
\(\frac{2012+2013\cdot2014}{2014+2015-2016}\)
2012 + 2013 x 2014 / 2014 + 2015 - 2016
= 2012 + 2013 x 2014 / 2014 x ( 2013 + 2 ) - 2016 = 2012 + 2013 x 2014 / 2014 x 2013 + 2014 x 2 -2016 = 2012 + 2013 x 2014 / 2014 x 2013 + 2012 = 1
kết quả bằng 1. chắc chắn đấy, k mình nha
Theo mik bn lấy:
2014: 2014 = 1
<=> \(\frac{2012+2013-1}{1+2015-2016}\)
= \(\frac{4024}{0}\)= 4024
nha bn
\(\frac{2015\cdot2014-1}{2013\cdot2015+2014}=?\)
\(B=\frac{1-3}{1\cdot3}+\frac{2-4}{2\cdot4}+\frac{3-5}{3\cdot5}+\frac{4-6}{4\cdot6}+............+\frac{2011-2013}{2011.2013}+\frac{2012-2014}{2012\cdot2014}-\frac{2013+2014}{2013\cdot2014}\)
\(\frac{45\cdot16-17}{45\cdot15+28}\) các bạn đề là tính nhanh nhé
Ví dụ: \(\frac{2016\cdot2015-5}{2014\cdot2016+2011}=\frac{2016\cdot\left(2014+1\right)-5}{2014\cdot2016+2011}=\frac{2016\cdot2014+2016\cdot1-5}{2014\cdot2016-2011}=\frac{2016\cdot2014+2011}{2014\cdot2016+2011}=1\)
\(\left(2013\cdot2014+2014\cdot2015+2015\cdot2016\right)\cdot\left(1+\frac{1}{3}-1\frac{1}{3}\right)\)
\(\left(2013.2014+2014.2015+2015.2016\right)\left(1+\frac{1}{3}-1\frac{1}{3}\right)\)
\(=\left(2013.2014+2014.2015+2015.2016\right)\left(\frac{4}{3}-\frac{4}{3}\right)\)
\(=\left(2013.2014+2014.2015+2015.2016\right).0\)
\(=0\)
\(\frac{2015\cdot2014-1}{2013\cdot2015+2014}\).
\(\frac{1234\cdot567-667}{567+1234\cdot566}\)
Tính giá trị giá trị biểu thức