A ) aaa : a = a x 111 = 111
B ) abab : ab = ab x 101 : ab = 101
C ) abcabc :abc = abc x 1001 : abc = 1001
D ) abcabc : ( 7 x 11 x 13 ) = abc x 1001 : 1001 = abc
K nha
1) aaa : a = 111
2) abab : ab = 101
3) abcabc : abc = 1001
4) abcabc : ( 7 . 11 . 13 ) =abcabc : 1001 = abc
a ) aaa : a = a x 111 = 111
b ) abab : ab = ab x 101 : ab = 101
b ) abcabc :abc = abc x 1001 : abc = 1001
d ) abcabc : ( 7 x 11 x 13 ) = abc x 1001 : 1001 = abc