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Hàm số $y={{x}^{3}}+2$

Câu 12: Hàm số y=x3+2y={{x}^{3}}+2y=x3+2. có bao nhiêu điểm cực trị?

Thông tin câu hỏi

Câu 12:
Hàm số $y={{x}^{3}}+2$ . có bao nhiêu điểm cực trị?