Page 20 - CHƯƠNG II: GIẢI TÍCH 12-12a2
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Trường THPT Châu Phú                      Chương II: Mũ – Lôgarit                          INOXHTT
                               )
                                                                          x
                                x
                    A. y = (0,5          B. y =      2     x       C. y = ( )      D. y =      e     x
                                                                        2
                                                  3                                         
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            Câu 156: Hàm số nào dưới đây thì nghịch biến trên tập xác định của nó?
                    A. y = log x         B. y =  log  x        C. y =  log x        D. y =  log x
                              2                     3                    e                     
                                                                         
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            Câu 157: Số nào dưới đây nhỏ hơn 1?
                         2   2                 e                 e                     
                    A.                 B. ( )                C.                  D. e
                                               3
                         3 
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            Câu 158: Số nào dưới đây thì nhỏ hơn 1?
                                )
                    A.  log   (0,7      B.  log 5             C.  log e            D. log 9
                                                                      
                                                3
                                                                                           e
                                                                     3
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            Câu 159: Hàm số y = ( x −  2  2x +  ) 2 e  có đạo hàm là:
                                                x
                            2 x
                                                     x
                                                                              x
                    A. y’ = x e          B. y’ = -2xe          C. y’ = (2x - 2)e    D. Kết quả khác
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                                 e x
            Câu 160: Cho f(x) =     . Đạo hàm f’(1) bằng :
                                 x 2
                        2
                    A. e          B. -e         C. 4e          D. 6e
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