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sin15º·sin30º·sin75º的值等于
sin15º·sin30º·sin75º的值等于
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人气:1.92W
问题详情:
sin15º·sin30º·sin75º的值等于___________.
【回答】
知识点:
三角函数
题型:
填空题
TAG标签:
#
sin30
#
sin15
#
等于
#
sin75
#
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