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Mathematics, 23.07.2021 14:00 fatherbamboo

Cho bất phương trình mx² - 2(m+1)x+4≥0 (1) tìm tất cả các giá trị của m để bất phương trình (1) nghiệm đúng với ∀x∈R

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Cho bất phương trình mx² - 2(m+1)x+4≥0 (1) tìm tất cả các giá trị của m để bất phương trình (1) ngh...
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