đề bài là :123.456456-456.123123 thì mình thấy đúng hơn

   ( 98.7676 - 9898.76 ) : .....

= ( 98.76.101 - 98.101.76 ): ....

= 0 : ... = 0

a) = (4.11.4.13.4.15) : (11.13.15) = (64.11.13.15) : (11.13.15) = 64

b) = 123.456.1001 - 456.123.1001 = 0

c) = (98.76.101 - 98.101.76) : (2001.2002....2010) = 0 : (2001.2002....2010) = 0

very good you are my best friend you will  die

a﴿ = ﴾4.11.4.13.4.15﴿ : ﴾11.13.15﴿ = ﴾64.11.13.15﴿ : ﴾11.13.15﴿ = 64

b﴿ = 123.456.1001 ‐ 456.123.1001 = 0

c﴿ = ﴾98.76.101 ‐ 98.101.76﴿ : ﴾2001.2002....2010﴿ = 0 : ﴾2001.2002....2010﴿ = 0

k cho mình nha

sua lai 

A) \(\left(44.52.60\right):\left(11.13.15\right)\)

\(=\left(4.11.4.13.4.15\right):\left(11.13.15\right)\)

\(=4^3\left(11.13.15\right):\left(11.13.15\right)\)

\(=64\)

B) \(123.456456-456.123123\)

\(=123.456.1001-456.123.1001\)

\(=56088.1001-56088.1001\)

\(=1001.\left(56088-56088\right)\)

\(=1001.0\)

\(=0\)

C)  \(\left(98.7676-9898.76\right):\left(2001.2002....2020\right)\)

\(=\left(98.76.101-98.101.76\right):\left(2001.2002....2020\right)\)

\(=0:\left(2001.2002....2020\right)\)

\(=0\)

A)  \(\left(44.52.60\right):\left(11.13.15\right)\)

\(=\left(4.11.4.13.4.15\right):\left(11.13.15\right)\)

\(=4\left(11.13.15\right):\left(11.13.15\right)\)

\(=4.1\)

\(=4\)

a) = ( 4.11.4.13.4.15) : ( 11.13.15 )

= ( 64.11.13.15 ) : ( 11.13.15 )= 64

b) 123.456456-456.123123

= 123.456.1001-456.123.1001=0

c) chưa nghĩ ra

nhưng 2 câu a vs b mình làm đúng 100 %

1) 123. 456456-456.123123

= 123. 123123.2 - 123. 123123.2

= 0

2) 127.313313-13.127127

= 127. 313.1001 - 13. 1001.127

= 127127.313 - 13.127127

= 127127. ( 313-13) 

=127127.300 = 38138100

3) (98.7676-9898.76).(1+2+3+......+100)

= (98. 101.76 - 98.101.76).(1+2+3+......+100)

= 0 .(1+2+3+........+100)

=0

4) 19 + 19 +......+19+77+77+....+77

= 19x 23 + 77 x19 

= 19 x ( 23+77) 

= 19 x 100

= 1900