问题描述:
1.若SIN(α+β)除以SIN(α-β)等于p除以q,则tanα除以tanβ等于?
2.sin(45°—3X)cos(60°—3X)—cos(30°+3X)sin(45°+3X)
2.sin(45°—3X)cos(60°—3X)—cos(30°+3X)sin(45°+3X)
问题解答:
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