Question

cho mn hỏi câu tính nhanh này với nhé

\(\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)x\left(1+1x2+1x2x3-9\right)\)

giúp mn nhé mn sắp phải nộp zùi

Answer 1

\(\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)x0=0\)

Answer 2

#)Giải :

\(\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)\times\left(1+1\times2+1\times2\times3-9\right)\)

\(=\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)\times\left(1+2+6-9\right)\)

\(=\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)\times0\)

\(=0\)

              #~Will~be~Pens~#

Answer 3

\(\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)\times\left(1+1\times2+1\times2\times3-9\right)\)

\(=\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)\times\left(1+2+6-9\right)\)

\(=\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)\times\left(9-9\right)\)

\(=\left(\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\right)\times0\)

\(=0\)

~ Hok tốt ~