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问题: 集合A={x|x=kπ/6,k∈Z},B={y|y=nπ/3+π/6,n∈Z}的关系是?

集合A={x|x=kπ/6,k∈Z},B={y|y=nπ/3+π/6,n∈Z}的关系是?

需要讲解啊

解答:

集合A={x|x=kπ/6,k∈Z},B={y|y=nπ/3+π/6,n∈Z}的关系是?
B是A的真子集
讲解:
集合A={x|x=kπ/6,k∈Z}
={......-π/2,-π/3,-π/6,0,π/6,π/3,π/2......}
集合B={y|y=nπ/3+π/6,n∈Z}={y|y=(2n+1)π/6,n∈Z}=
={......-π/2,-π/6,π/6,,π/2......}
∴B是A的真子集