Page 16 - CHƯƠNG II: GIẢI TÍCH 12-12a2
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Trường THPT Châu Phú Chương II: Mũ – Lôgarit INOXHTT
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Câu 131: Điểm nào sau đây không thuộc đồ thị hàm số y = 7 x + 2 x− 2 :
1
.(1;1) B − C .(0; ) D .(0;49)
A
.( 2;1)
49
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Câu 132: Xác định m để A(m; 1) thuộc đồ thị hàm số y = 7 x + 2 x− 2 :
m = 1 m = − 1 m = 1 m = − 1
. A . B . C . . D
m = 2 m = 2 m = − 2 m = − 2
−
C©u 133: NÕu log x = 1 (log 9 3log 4) (a > 0, a 1) th× x b»ng:
a a a
2
A. 2 2 B. 2 C. 8 D. 16
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Câu 134: Tập nghiệm của bất phương trình y < 0 là: biết y = 7 x + 2 x− 2
. A x 1/ 2 . B x 1/ 2 C .0 x 1/ 2 D .x
0
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Câu 135: Đạo hàm cấp 1 của hàm số y = log (2x + 1)tại x = 0 là:
3
A .0 B .1 C .2 .D = 3
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Câu 136: Đạo hàm của hàm số y = ( x e + x ln ) tại x = 1là:
x
A .2e + 1 B .2e − 1 C .2e + 2 D .2e +
2
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Câu 137: Cho hàm số y = ( x e + x ln ) . Chọn khẳng định sai trong các khẳng định sau:
x
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