nguyenhonghuypt 4/12/2024 8:24:24 AM

Câu 12:        Cho hàm số https://lh7-us.googleusercontent.com/RpvyNdL1W1bp3QJFPwvOlLEHf2JTUIWFuW_S5wT-rq2w1zBvHyS9HZqGRrUjCjLjaL4qfHFT4cQtcNSd3w9OF6YExBvbWnfXgIAg7mT2TaHBnIrd84wT4iJzhHMr1U13bTQ0zwddkRVgyv4=s800 có đồ thị là đường cong hình bên. Hàm số đã cho nghịch biến trên khoảng nào dưới đây?

https://lh7-us.googleusercontent.com/YlSVjld7pZa6_KZvMpcyDM-oDxMV5LXoof8mac_oOjM_0Xo5eNdOTC1lzMJZuDF0jkcCheSElYRvnVnHj3x9fwBbpCfOj-i5j_Vwn0QETmK7SHlSkuoWTBH8PSywCAqMsH-SSIjA-eFKlSY=s800

A. https://lh7-us.googleusercontent.com/qAD6ctCggRiDhU6Is-98PTn-s6dQLurY6iCgDXee_zDPkTWSvbPBSEBSEXIooCiNE_I46ylmrByS6b_ktE_51IaDYpAsqpFgZo2H3zgdKnquEX-73S3eZjwU0yB0I5oZ360oxWbvt6bkjV4=s800.        B. https://lh7-us.googleusercontent.com/efYdkv1tgfJ0d2kuIpclPyhbc7s34aWAjShEbB9uSLnPAe3nXda_VFJXc4uzjXzbuAXrhiAa5BlDYNaY02C3mM-9S0sfj3NgzEUJlcoQ8YmJJ87g8Aq2wlpR7ooth5IFx_4WPDxfMxzDLQ8=s800.        C. https://lh7-us.googleusercontent.com/3Bk1ddrwAUip8y8Tb0LDxyvZE3uCU98_diOfnjXpWq3EfcBiIXifa5cDvEsRDhfAh-7dOr0jO7BYEO6l9inwRsedOfIS6ElDj_ECwTGc4NpBMhAXgyvcxO1ABJ0aQLjATlwwkqb1nSTUM5s=s800.        D. https://lh7-us.googleusercontent.com/bslX13JcoOLcBtavyCWPT17rpzIzcEDJqtt9L29EyH5FskQbxH4n8ID7WB72fssZN5gBuuCMGZ7TK3orvhzfTEdpLSJX4m8GnlhVI5XZgbCA9PpbH_lV_O26Ogfd_R2IKO8LHuRKOMCwiBQ=s800.

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