Quiz about toán 11

Question 1

$$Tính\ giới\ hạn\ L\lim_{x\rightarrow+\infty}\frac{3x^2+5}{x^2-2x+3}\ bằng$$

Accepted Answer

L=0

Answer

L=3

Answer

L= $$-\frac{3}{2}$$

Answer

$$L=-\frac{1}{3}$$

Question 2

$$Giá\ trị\ của\ giới\ hạn\ \lim\frac{3n+1}{1-n}\ bằng$$

Accepted Answer

-3

Answer

2

Answer

3

Answer

!

Question 3

cho $$\lim_{x\rightarrow0}f\left(x\right)=5\ \lim_{x\rightarrow0}g\left(x\right)=2\ .\ tính\ L=\lim_{x\rightarrow0}\left[f\left(x\right)+g\left(x\right)\right]$$

Accepted Answer

L=7

Answer

L=-3

Answer

L=3

Answer

L=10

Question 4

Question 4.

Accepted Answer

x=2

Answer

x=0

Answer

x=1

Answer

x=4

Question 5

Question 5.

Accepted Answer

C'D'

Answer

BD

Answer

CC'

Answer

D'A'

Question 6

$$Công\ thức\ nghiệm\ của\ phương\ trình\ an\ x= an\alpha$$

Accepted Answer

$$x=\alpha+k\pi\ \ \ \ \left(k\in Z\right)$$

Answer

$$\left[_{x=\pi-\alpha+\kappa2\pi}^{x=\alpha+\kappa2\pi}\right]\kappa\in Z$$

Answer

$$\left[_{x=\pi-\alpha+\kappa\pi}^{x=\alpha+\kappa\pi}\right]\kappa\in Z$$

Answer

$$x=\pm\alpha+k2\pi\ \ \ \left(k\in Z\right)$$

Question 7

$$Công\ thức\ nghiệm\ của\ phương\ trình\ \sin x=\sin\alpha$$

Accepted Answer

$$\left[_{x=\pi-\alpha+\kappa2\pi}^{x=\alpha+\kappa2\pi}\right]\kappa\in Z$$

Answer

$$\left[_{x=\pi-\alpha+\kappa\pi}^{x=\alpha+\kappa\pi}\right]\kappa\in Z$$

Answer

$$x=\pm\alpha+k2\pi\ \ \left(k\in Z\right)$$

Answer

$$x=\alpha+k\pi\ \ \ \left(k\in Z\right)$$

Question 8

$$Biết\ rằng\lim\ \frac{\sqrt[3]{an^3+5n^2\ -7}}{\sqrt[]{3n^2\ -n+2}}=b\sqrt[]{3}\ tính\ giá\ trị\ biểu\ thức\ P=\frac{a}{b^3}$$

Accepted Answer

$$27$$

Answer

$$\frac{1}{3}$$

Answer

$$3$$

Answer

$$\frac{1}{27}$$

Question 9

$$cho\ \lim_{\rightarrow3}\ \frac{x^2+ax+b}{x-3}=3\ tính\ a+b$$

Accepted Answer

-3

Answer

3

Answer

9

Answer

-9

Question 10

$$cho\ dãy\ số\ \left(u_n\right)\ là\ một\ cấp\ số\ nhân\ u_1=\frac{1}{2};q=2.Năm\ số\ đầu\ tiên\ của\ cấp\ số\ nhân\ là$$

Accepted Answer

$$\frac{ ext{1}}{ ext{2}};1;2;4;8$$

Answer

$$\frac{ ext{1}}{ ext{2}};-1;2;-4;8$$

Answer

$$\frac{1}{2};-\frac{1}{4};\frac{1}{8};-\frac{1}{16};\frac{1}{32}$$

Answer

$$\frac{1}{2};\frac{1}{4};\frac{1}{8};\frac{1}{16};\frac{1}{32}$$

toán 11

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