Quiz about 1st week Quizz

Question 1

How confident are you?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 2

$$\lim_{x\rightarrow2}\ \frac{x^2-4x+4}{x^2+x-6}\ $$ Find the limit

Accepted Answer

$$0$$

Answer

$$-2$$

Answer

$$\infty$$

Answer

D.

Question 3

$$\lim_{k\rightarrow4}\ \frac{4-k}{2-\sqrt{k}}\ $$ Find the limit

Accepted Answer

$$4$$

Answer

$$-\infty$$

Answer

$$0$$

Answer

D.

Question 4

$$\lim_{k\rightarrow\infty}\ \frac{2-k}{\sqrt{7+9k^2\ }}$$ Find the limit

Accepted Answer

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

Answer

$$0$$

Answer

Does not exist

Answer

D.

Question 5

$$\lim_{x\rightarrow2}\ \frac{\left|x-2\right|}{x-2}\ $$ Find the limit

Accepted Answer

Does not exist

Answer

$$1$$

Answer

$$-1$$

Answer

D.

Question 6

$$\left\{\frac{1}{n+1}+2\right\}_1^{\infty}$$ Find the limit of this sequnce

Accepted Answer

$$2$$

Answer

$$\infty$$

Answer

$$0$$

Answer

D.

Question 7

$$\lim_{x\rightarrow\infty}\ xe^{-x}\ $$ Find the limit

Accepted Answer

$$0$$

Answer

$$\infty$$

Answer

Does not exist

Answer

D.

Question 8

Which ODE is linear

Accepted Answer

$$xy$$

Answer

$$y$$

Answer

$$y\cdot y$$

Answer

D.

Question 9

Which one is a 1st-order ODE

Accepted Answer

$$y\cdot y$$

Answer

$$y$$

Answer

$$xy$$

Answer

D.

Question 10

$$y$$ what is the degree of this ODE

Accepted Answer

$$1$$

Answer

$$3$$

Answer

$$2$$

Answer

D.

Question 11

$$y$$ which one is the general solution of this ODE

Accepted Answer

$$-\cos2x-x+C$$

Answer

$$\sin2x+x+C$$

Answer

$$-\sin2x+x+C$$

Answer

D.

Question 12

$$y$$ which one is the general solution of this ODE

Accepted Answer

$$e^{-2t}+Ce^{-3t}$$

Answer

$$e^{2t}+Ce^{-3t}$$

Answer

$$e^{2t}+Ce^{3t}$$

Answer

D.

Question 13

Which one describe you after taking the quiz

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

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