[题1.9]用公式法将下列函数化简成为最简与或式:-|||-(1) (overline (A)+B)+B(B+B)+B-|||-(2) (overrightarrow (A)+overrightarrow (B)+overrightarrow (C))(B+overrightarrow (B)+C)(C+B+overrightarrow (C))-|||-(3) +Aoverline (B)+overline (A)B+overline (A)overline (B)-|||-(4) (A+AB+ABC)(A+B+C)-|||-(5) (Aoverline (B)+overline (A)B)(AB+overline (A)B)-|||-(6) +overline (A)B+ABoverline (C)-|||-(7) (AB+AB+AB)(A+B+D)+ABD)-|||-(8) (Aoverline (B)+D)(A+B)D-|||-(9) overline (C)+overline (A)overline (B)+BC+ACD-|||-(10) AB+C+ACD+BCD