Page 17 - CHƯƠNG II: GIẢI TÍCH 12-12a2

Trường THPT Châu Phú Chương II: Mũ – Lôgarit INOXHTT
+
. ( ) e =
. (1) 1 2e
. (1) 1 2e
) 2
. (0) 0
A y = + B y / = + C y = D y / e e (1 e +

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4
Câu 138: Biểu thức a : a viết dới dạng luỹ thừa với số mũ hữu tỷ là:
3
2
3
5 2 5 7
A. a B. a C. a D. a
3
3
8
3
=
C©u 139: Cho log 6 a . Khi ®ã log318 tÝnh theo a lµ:
2
−
2a 1 a
A. B. C. 2a + 3 D. 2 - 3a
−
+
a 1 a 1

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Câu 140: Hàm số y = ( x + 5x − ) 6 có tập xác định là:
ln −
2
A. (0; +∞) B. (-∞; 0) C. (2; 3) D. (-∞; 2) ẩ (3; +∞)
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Câu 141: Xác định m để y / ( ) = e 2m+ 1 biết y = log (2x + 3 1)
−
+
+
−
1 2e 1 2e 1 2e 1 2e
. A m = . B m = . C m = . D m =
4e − 2 4e + 2 4e − 2 4e + 2
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( 2 )
x 2 x có tập xác định là:
Câu 142: Hàm số y = ln x + − −
A. (-∞; -2) B. (1; +∞) C. (-∞; -2) ẩ (2; +∞) D. (-2; 2)
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