Page 14 - CHƯƠNG II: GIẢI TÍCH 12-12a2

Trường THPT Châu Phú Chương II: Mũ – Lôgarit INOXHTT
1 2x x− 1
Câu 116: Cho biểu thức A = + 3. 2 − 4 2 . Tìm x biết A = 3
2 − x− 1

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Câu 117: Điểm nào sau đây không thuộc đồ thị hàm số y = ln(2x + 2 e 2 ) :
.( ;2 ln3)
A
.( ;2 ln3)
.( 1;2)
.(0;2) B e − + C e + D −
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Câu 118: Xác định m để A(m; 2) thuộc đồ thị hàm số y = ln(2x + 2 e 2 ) :
. Am = 0 . B m = 1 C .m = 2 D .m =
3
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Câu 119: Cho phương trình 4 − 3.2 + = . Số nghiệm của phương trình trên là:
x
x
2 0
A .1 B .2 C .3 D .4
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−
Câu 120: Phương trình 4 3x 2 = 16 có nghiệm là:
3
4
A. x = B. x = C. 3 D. 5
4 3
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Câu 121: Giá trị nhỏ nhất của hàm số y = 7 x + 2 x− 2 trên [0;1] là:
A .0 B .1 C .2 . .3
D
C©u 122: NÕu log 243 5= th× x b»ng:
x
A. 2 B. 3 C. 4 D. 5

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