\(2015.20162016-2016.20152015=2015.2016.10001-2016.2015.10001=0\)

Tính nhanh :

A = \(2016.20152015-2015.20162016\)

= \(2016.2015.10001-2015.2016.1001\)

=0

\(A=2016.20152015-2015.20162016\)

\(=2016.2015.10001-2015.2016.10001\)

\(=0\)

Tính :

\(\dfrac{1993+1993.1994}{1992.1995+1995}\)= \(\dfrac{1993.1+1993.1994}{1992.1995+1995.1}\)=\(\dfrac{1993\left(1+1994\right)}{1995\left(1992+1\right)}\)=\(\dfrac{1993.1995}{1995.1993}=1\)

A>B like nha

Lan Yêu Nghi THôn 1

Lan Đơ

2016 x 20152015 – 2015 x 20162016

= 2016 x 2015 x 10001 – 2015 x 2016 x 10001

= 0

2016.20152015-2015.20162016

= ( 2016 - 2015 ) x ( 20162016 - 20152015)

= 1 x 1001

= 1001

Mình đoán thôi, sai thì đừng giận nha 

a, \(A=2015.20162016-2016.20152015\)

\(A=2015.\left(2016.10001\right)-2016.20152015\)

\(A=\left(2015.10001\right).2016-20152015.2016\)

\(A=20152015.2016-20152015.2016\)

\(A=0\)

Vậy A = 0

b, \(B=\left(3.4.2^{16}\right)^2\div11.2^{13}.4^{11}-16^9\)

\(B=3^2.2^4.2^{32}\div11.2^{13}.\left(2^2\right)^{11}-\left(2^4\right)^9\)

\(B=3^2.2^4.2^{32}\div11.2^{13}.2^{22}-2^{36}\)

\(B=3^2.2^{36}\div11.2^{35}-2^{36}\)

\(B=3^2.2^{35}.2\div11.2^{35}-2.2^{35}\)

\(B=3^2.2\div9=9.2\div9=2\)

Vậy B = 2

c, \(C=2^{10}.13+2^{10}.65\div2^8.104\)

\(C=2^{10}.\left(13+65\right)\div2^8.104\)

\(C=2^{10}.78\div2^8.104\)

\(C=2^{10}.39\div2^8.13\)

\(C=39\div13=3\)

Vậy C = 3

Đề bài câu c sai mk sửa nhé là 2⁸ ms tính đc k nó dư lắm !!!

2015.20162016-2016.20152015

=2015.2016.1001-2016.2015.1001

=0

A = 2016.20162015 - 2015.20162016 + 2017

A = (2016.20162015-2015.20162016) + 2017

A = 0 + 2017

A = 2017

A=20160000+2017

A=20162017

A=2016.20162015−2015.20162016+2017
A=20162017

A=20162017

Hok tốt#

Tính : A = 2016 x 20162015 - 2015 x 20162016

         A = 40646622240 - 2015 x 20162016

         A = 40646622240 - 40626462240

        A = 20160000