问题
填空题
终边在坐标轴上的角的集合为______.
答案
终边在x轴上的角的集合为{α|α=kπ,k∈Z},终边在y轴上的角的集合为{α|α=kπ+
,k∈Z},故合在一起即为{α|α=π 2
,n∈Z}nπ 2
故答案为:{α|α=
,n∈Z}nπ 2
终边在坐标轴上的角的集合为______.
终边在x轴上的角的集合为{α|α=kπ,k∈Z},终边在y轴上的角的集合为{α|α=kπ+
,k∈Z},故合在一起即为{α|α=π 2
,n∈Z}nπ 2
故答案为:{α|α=
,n∈Z}nπ 2
选择正确的词组,并用其适当形式填空(10分,每空1分)
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