设全集I = {a, b, c, d, e, f, g},集合A = {a, b, c},B = {b, d, e},C
设全集I={a,b,c,d,e,f,g,h},集合A={a,b,c,d,e,f},B={c,d,e},C={a,d},那
设全集I = {a,b,c,d,e,f,g,h},
设全集U={a,b,c,d,e},集合M={c,d,e},N={a,b,e},那么集合{a,b}可以表示为
设集合A={a,b,c,d,e},集合B={c,d,f,g},求A∩B,A∪B.
设全集U={a,b,c,d,e,f},A={a,c,e,f},B={b,c,d,e},分别求集合Cu(A∩B)和CuA∪
已知全集U={a,b,c,d,e,f,g},(CuA)U(CuB)={a,b,c,e,f,g},(CuA)∩B={c,g
已知集合A=a,b,c,d,e B=m,n,f,g
图G=,其中V={a,b,c,d,e,f },E={(a,b),(a,c),(a,e),(b,d),(b,e),(c,e
若全集U=(a,b,c,d,e),集合A=(a,c,e),B=(b,c,d),则CuA∩CuB=( )
a b c d e f g
A B C D E F G ,
a+b+c+d+e+f+g=20