nhieu qua zay bn

ai ma tinh duoc

ha bn?

d) 0

( 2013 x 2014 + 2014 x 2015 + 2015 x 2016) x ( 1 + 1/3 - 4/3)

=( 2013 x 2014 + 2014 x 2015 + 2015 x 2016) x ( 4/3 - 4/3)

=( 2013 x 2014 + 2014 x 2015 + 2015 x 2016) x 0

=0

Ta có: \(\left(2013\cdot2014+2014\cdot2015+2015\cdot2016\right)\left(1+\dfrac{1}{3}-\dfrac{4}{3}\right)\)

\(=\left(2013\cdot2014+2014\cdot2015+2015\cdot2016\right)\left(\dfrac{3}{3}+\dfrac{1}{3}-\dfrac{4}{3}\right)\)

=0

2019 + 2017 + 2015 + .... + 1003 + 1001 - 2018 - 2016 - 2014 -.... - 1002 - 1000

=(2019-2018)+(2017-2016)+....+(1001-1000)

=1+1+...+1

= 510

bằng 1 thưa bạn 

=(2014*2013 +2014+2014-2016) : (2012 +2013*2014)

=(2014*2013 +2012):(2012+2013*2014)

í thiếu mất bằng 1

( 2013 x 2014 +2014 x 2015 + 2015 x 2016 ) x ( 1 + 1/3 - 1 - 1/3 )

= ( 2013 x 2014 + 2014 x 2015 + 2015 x 2016 ) x 0

= 0

\(\frac{2012+2013.2014}{2014.2015-2016}=\frac{2012+2013.2014}{2014.\left(2013+2\right)-2016}\)

                     \(=\frac{2012+22013.2014}{2014.2013+2014.2-2016}\)

                     \(=\frac{2012+2013.2014}{2014.2013+2028-2016}\)

                     \(=\frac{2012+2013.2014}{2014.2013+2012}=1\)

\(\frac{2012+2013.2014}{2014.2015-2016}\)

\(=\frac{2012+2013.2014}{2014.\left(2013+2\right)-2016}\)

\(=\frac{2012+2013.2014}{2014.2013+2014.2-2016}\)

\(=\frac{2012}{2014.2-2016}\)

\(=\frac{2012}{4028-2016}\)

\(=\frac{2012}{2012}\)

\(=1\)

Chịu

​

số 8 kia là dấu nhân phải ko

2014*2015+2016/2016*2015-2014=(bỏ hai số 2015 ở cả tử và mẫu chỗ này ko cần viết đâu chỉ cần dùng bút chì gạch trong bài thôi)2014+2016/2016+2014=1

2014 x 2015 + 2016 / 201682015 - 2014

= (2014 x 2015 + 2016) : (201682015 - 2014)

= 4060226 : 201680001

= 49,672112094252881489848102051462
 

\(\frac{2014.2015+2016}{2015.2016-2014}=\frac{2014.2015+2016}{2015.2014+4030-2014}=\frac{2014.2015+2016}{2014.2015+2016}=1\)