(2)已知 P(A)=1/2 (B)=1/3 (C)=1/5, P(AB)=1/10 (AC)=1/15 (BC)=-|||-https:/img.zuoyebang.cc/zyb_db040272f8429d1172b30d9c84d5d7fa.jpg/20, (ABC)=1/30, 求 cup B, AB, cup Bcup C, ABC,ABC, overline (AB)cup C 的概率.