Question

Xác định dạng các tích sau:

a)ab . 101             b)abc . 7 . 11 . 13

Answer 1

 a / ab.101=ab(100+1) 
= ab.100+ab.1 
=ab00+ab 
=abab 
b/ abc.7.11.13=abc.1001 
=abc(1000+1) 
=abc.1000+abc.1 
=abc000+abc=abcabc

Answer 2

\(a,\overline{ab}\cdot101=\overline{abab}\)

\(b,\overline{abc}\cdot7\cdot11\cdot13=\overline{abc\cdot1001}=\overline{abcabc}\)

Answer 3

thank nha

Answer 4

ab.101=abab

abc.7.11.13=abc.1001=abcabc

Answer 5

ab.(100+1)                                               

=ab.100+ab.1

=ab00+ab

=abab                                                      

Answer 6

$\backslash (\backslash text\{\backslash overline\{ab\}\; .\; 101\; =\; \backslash overline\{abab\}\; \}\backslash )$

\( \overline{abc}.7.11.13=\overline{abc}.1001=abcabc\)