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Câu 30:

Phương trình $\sin 5x.\cos 3x = \sin 7x.\cos 5x$

Câu 30: Phương trình sin⁡5x.cos⁡3x=sin⁡7x.cos⁡5x\sin 5x.\cos 3x = \sin 7x.\cos 5xsin5x.cos3x=sin7x.cos5x có tập nghiệm là:

Thông tin câu hỏi

Câu 30:

Phương trình $\sin 5x.\cos 3x = \sin 7x.\cos 5x$ có tập nghiệm là: