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Câu 11. Cho hàm số $f(x)=x^{2}+4$

Câu 11. Cho hàm số f(x)=x2+4f(x)=x^{2}+4f(x)=x2+4. Khẳng định nào dưới đây đúng?

Thông tin câu hỏi

Câu 11. Cho hàm số $f(x)=x^{2}+4$ . Khẳng định nào dưới đây đúng?