设集合A=｛a1,a2,a3,a4,a5,a6｝,若a2属于A∩B,a3不属于A∩B,则A的子集B的个数有____个.

若集合A={a1,a2,a3,a4,a5,a6｝,B={a1^2,a2^2,a3^2,a4^2,a5^2,a6^2},其 已知集合A={a1,a2,a3,a4,a5,a6,a7},A并上B={a1,a2,a3,a4,a5,a6,a7,.,a1 设全集U=｛a1,a2,a3,a4,a5｝,集合A,B都是U的子集,且A∩B=｛a5｝,补集A∩B=｛a4｝,补集A∩补 已知集合A={a1,a2,a3,a4,a5,a6,a7},A∪B={a1,a2,a3,a4,a5,a6,a7.,a100 设集合A=﹛a1,a2,a3,a4,a5｝,B=｛a1²,a2²,a3²,a4² 设a1,a2,a3,a4,a5为自然数，A=｛a1,a2,a3,a4,a5｝，B=｛a1²,a2²,a3²,a4²,a5 设a1 a2 a3 a4 a5为自然数,A={a1 a2 a3 a4 a5},B={a1^ a2^ a3^ a4^a5^ 设a1,a2,a3,a4,a5为自然数,A={a1,a2,a3,a4,a5},B={a1^2,a2^2,a3^2,a4^ 已知A={a1,a2,a3,a4,a5},B={a1^2,a2^2,a3^2,a4^2,a5^2},ai属于N*,i=1 已知集合A={a1,a2,a3,a4,a5,a6},B={b1,b2 ,b3,b4},映射和排列组合问题 设a1,a2,a3,a4,a5,为正整数,A={a1,a2,a3,a4,a5},B={a1²,a2² 设集合A，B是非空集合M的两个不同子集，满足：A不是B的子集，且B也不是A的子集． （1）若M={a1，a2，a3，a4