CAO THỦ CASIO

CAO THỦ CASIO

9th - 12th Grade

20 Qs

quiz-placeholder

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CAO THỦ CASIO

CAO THỦ CASIO

Assessment

Quiz

Mathematics

9th - 12th Grade

Hard

CCSS
HSA-SSE.B.3B, HSN.CN.A.3, HSN.RN.A.2

+5

Standards-aligned

Created by

Quy Kim

Used 1K+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Tìm nghiệm của phương trình sau:  3x1 = 273^{x-1}\ =\ 27

x = 9

x = 3

x = 4

x = 10

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Phương trình  log22x 5log2x + 4 =0\log_2^2x\ -5\log_2x\ +\ 4\ =0 có 2 nghiệm  x1x_1; x2x_2khi đó tích  x1x2x_1\cdot x_2bằng:

16

36

22

32

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Cho hàm số  y = 3sinx 4sin2xy\ =\ 3\sin x\ -4\sin^2x. Giá trị lớn nhất của hàm số trên khoảng  (π2;π2)\left(-\frac{\pi}{2};\frac{\pi}{2}\right)bằng:

-1

3

1

7

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Cho  01dxex + 1= a + bln1 +e2\int_0^1\frac{dx}{e^{x\ }+\ 1}=\ a\ +\ b\ln\frac{1\ +e}{2}, với a,b là các số hữu tỉ. Tính  S=a3+b3S=a^3+b^3

S = 0

S = 2

S = -2

S = 1

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Tìm tập xác định D của hàm số  y=(x4 3x2  4)2y=\left(x^{4\ }-3x^2\ -\ 4\right)^{\sqrt[]{2}}

 D=(;1)(4;+)D=\left(-\infty;-1\right)\cup\left(4;+\infty\right)

 D=(;2)(2;+)D=\left(-\infty;-2\right)\cup\left(2;+\infty\right)

 D=(;2][2;+)D=\left(-\infty;-2\right]\cup\left[2;+\infty\right)

 D=(;+)D=\left(-\infty;+\infty\right)

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Tìm tất cả các giá trị của m để hàm số  y=2x3x2+mx y=2^{x^3-x^2+mx\ } đồng biến trên [1;2]

 m>13m>\frac{1}{3}

 m13m\ge\frac{1}{3}

 m1m\ge1

 m 1m\ \ge-1

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Cho số phức z thỏa mãn  (3i)(z+1)+(2i)(z+3i)=1i\left(3-i\right)\left(z+1\right)+\left(2-i\right)\left(\overline{z}+3i\right)=1-i. Tính mô-đun của số phức  w=iz1+zw=\frac{i-z}{1+z}

 824\frac{\sqrt[]{82}}{4}

 828\frac{\sqrt[]{82}}{8}

 2829\frac{2\sqrt[]{82}}{9}

 3825\frac{3\sqrt[]{82}}{5}

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