Page 12 - CHƯƠNG II: GIẢI TÍCH 12-12a2

Trường THPT Châu Phú Chương II: Mũ – Lôgarit INOXHTT
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2 2 2
Câu 102: Biểu thức K = 3 3 viết dới dạng luỹ thừa với số mũ hữu tỉ là:
3 3 3
5 1 1 1
 2  18  2  12  2  8  2  6
A.   B.   C.   D.  
 3   3   3   3 
C©u 103: log 4 32 b»ng:
1
8
5 4 5
A. B. C. - D. 3
4 5 12
−
−
C©u 104: TËp nghiÖm cña ph-¬ng tr×nh: 5 + x 1 5 3 x = 26 lµ:



A. 2; 4 B. 3; 5 C. 1; 3 D. 
=
C©u 105: Cho log 5 a . Khi ®ã log 500tÝnh theo a lµ:
2 4
1
A. 3a + 2 B. (3a 2+ ) C. 2(5a + 4) D. 6a - 2
2
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Câu 106: Đạo hàm cấp 1 của hàm số y = ln(2x + 2 e 2 ) tại x = e là:
4 4 4 4
. A . B . C .D
9e 9e 2 9e 3 9e 4
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Câu 107: Giá trị của e − 2x là: biết y = ln(2x + 2 e 2 )
y
2
4
D
. Ae . Be 2 . C e 3 . .e
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x − 2 x 4 1
−
Câu 108: Tập nghiệm của phương trình: 2 = là:
16


−
A.  B. {2; 4} C. 0; 1 D.  2; 2
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