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Câu 20:

Cho hàm số $y = {\sin ^2}x$

Câu 20: Cho hàm số y=sin⁡2xy = {\sin ^2}xy=sin2x. Mệnh đề nào dưới đây đúng?

Thông tin câu hỏi

Câu 20:

Cho hàm số $y = {\sin ^2}x$ . Mệnh đề nào dưới đây đúng?