数字电路答案
=BD(A+C)+B(C+CD)+AD =ABD+B(CD+C+D)+AD =B(AD+D)+CB+AD =(AB+BD+AD)+CB
=AB+AD+BC
(8)A?B?B?C?C?D?AB?BC?CD?DA 证:原式=AB?AB?BC?BC?CD?CD
=AB?BC?CD?AB?BC?CD?AD?DA
=AB?BC?CD?DA?AB?BC?CD?AD
=AB?BC?CD?DA?AB?BC?CD?DA=AB?BC?CD?DA
1-7
(1)F1=ABC+ABC
F1??A?B?C?(A?B?C)
(2)F2=A(B+C)+C(B+D) F2??A?BC?(C?BD)
(3)F3=(A+B)(C+D)
F3?AB?CD
(4)F4=(AB+CD)(B+AD)
F4??A?B??C?D??B?A?D?
(5)F5=AB+ACB+D
F5??A?B??A?C?BD?
(6)F6=A+BC+B+CD
6
数字电路答案
F6?A?B?C?BC?D
(7)F7=AC+BDC+A+BD
F7??A?C??B?D??CAB?D
(8)F8=(A+D)(B+C)+(A+C+B)AB+CD
F8?AD?BCACB??A?B??C?D?
1-8
(1)F1=AB+CD
F'1=(A+B)(C+D)
(2)F2=(A+B)(C+D)
F'2=AB+CD
(3)F3=A(B+D)+B(A+C)
F'3=(A+BD)(B+AC)
(4)F4=(A+BCD)(ABC+D)
F'4=A(B+C+D)+(A+B+C)D
(5)F5=A+B+C+D
F'5=ABCD
(6)F6=BC+CDB(AD+C)
F'6=(B+C)(C+D)+B+(A+D)C
(7)F7=BC+ADAC+C+AB
F'7=(B+C)(A+D)+A+CCA+B
(8)F8=ABC+A+CD(BD+C)+(BC+A+D)B+A+BC F'8=(A+B+C)A(C+D)+(B+D)C(B+C)AD+BA(B+C)
7
数字电路答案
1-9
(1)F1=ABC+ABC+ABC+ABC
A B C F0 0 0 10 0 100 1 000 1 111 0 001 0 111 1 001 1 11 (2)F2=A+BC+CD
A B C DFA B C DF0 0 0 001 0 0 010 0 0 101 0 0 110 0 1 001 0 1 010 0 1 111 0 1 110 1 0 001 1 0 010 1 0 101 1 0 110 1 1 011 1 1 010 1 1 111 1 1 11 (3)F3=AB+B(C+AD)
ABC000111100101010110ABCD000111100000100100111111111011118