baongan24021999 4/12/2024 8:00:41 AM

Câu 1:        Cho hàm số https://lh7-us.googleusercontent.com/l2rH9zodYxtrUsOpSUoGcxf7LfegS3uFXbw_vrkp1myfEpjqydxpNQJNyVYzIv3XzOj1QUkc2W18WiQ1GT5E4pIxTkX7_Ug18fOYDCX5CVAByAv4-6j06h9wcQCTXcxWWS95YFIH6rLivD4=s800 xác định trên https://lh7-us.googleusercontent.com/A50D1ZRUtrO7T8kryF4Jlb0iVn23sRSSEPGUAEe1sJ0p3uBywycW7q0giW1glJy1GfqGajxqSQ1izB3ADu92Z2roBrsq0lagzv0wYUc452txnS8Wyx6imeW2ICaFbCAuUb0FX5eSECvPkGw=s800 và có bảng biến thiên như hình vẽ sau:

https://lh7-us.googleusercontent.com/G82EmgWu3-Yf9HDnpMvSRPVW-vVGlSBPaQmlLzbNU71Yn2uCDhgtBOmz_FVWfvvwCi8pPVpeNbBPkLo6S7coltir5RZ_Bgzl0FpqWyklEe5QBx1MfgL-Iv3BlZwOYCgU4njuw1p2KD7NGAU=s800

Giá trị cực tiểu của hàm số đã cho bằng

A. https://lh7-us.googleusercontent.com/mJyZ6qUs4Nz57bsH3D_qi0iWEKJegDIpP6vOIZaMAZxas7ja2WMU6enG4x4l3B0QYDQqh4QkpW9DSz1yF-pHjMth8K0SN5dPcjjgAuRwAaOJd4BRvN3bdXPVl58QhUO3mSpzfYxKfU-VOvo=s800        B. https://lh7-us.googleusercontent.com/Uzg64oFusYBsalkezg2R9w9Z1-sLYD_zq6gZieEXUNAIf55JCJPl6Gyf7eN8NgqErBICPrtxybKfEY8Z6_ezW641eOfmMBfaXyXCMmYfyQlPVXW7aBAxPkZVLyICNzJQ4gr7D99jyMaZbF0=s800        C. https://lh7-us.googleusercontent.com/rxcgBIaaWNReyEZBkDAsc0KX-g75dUoCvtgUEWc_wIuZ1yDrK1x4YfsVF9dEn4CxvnPjgVpPt4T8XT_nSi2fvwn3ayuya7_LtQr0UiZh8HvuBkGF6Qmw2ijtLY6Ra6fjHqE1T9jacSFoc8s=s800        D. https://lh7-us.googleusercontent.com/-2fnWIBmBRm9ZzcwXWsL3VX7jN0wdvvEfrMBbahGnTZvR39e1o6202VHLHKHEhL8Z3JBcV-dtdNMSzHdjbypx74aqNbyF0Hvf1gmS6nQl6HCGJXmm_7Nnjhdc-FEctTF1a9_eFLSq0t4sUg=s800

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