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Câu 38:

Hàm số $y = 2\sin 2x - 1$

Câu 38: Hàm số y=2sin⁡2x−1y = 2\sin 2x - 1y=2sin2x−1 có bao nhiêu giá trị nguyên

Thông tin câu hỏi

Câu 38:

Hàm số $y = 2\sin 2x - 1$ có bao nhiêu giá trị nguyên