toán cuối kì 2 l 11

4

2

3

-2

$$\sqrt[]{3}$$

$$-\sqrt[]{3}$$

1

-1

$$2x\ \cos x\ -\ x^2\sin x$$

$$2x\ \cos x\ +\ x^2\sin x$$

$$2x\ \sin x\ -\ x^2\cos x$$

$$2x\ \sin x\ +\ x^2\cos x$$

-5

0

1

-3

$$-\frac{2x}{\left(x^2-1\right)^2}$$

$$\frac{-1}{\left(x^2-1\right)^2}$$

$$\frac{2x}{\left(x^2-1\right)^2}$$

$$\frac{2x^2}{\left(x^2-1\right)^2}$$

6m/ $$s^2$$

12m/ $$s^2$$

-6m/ $$s^2$$

-12m/ $$s^2$$

$$3^x\ln3+\frac{1}{x\ln10}$$

$$\log_3x+\frac{1}{x\ln3}$$

$$\log_3x+\ln3$$

$$\frac{1-\ln x}{\ln3}$$

$$\frac{\ln3}{4x+1}$$

$$\frac{4}{\left(4x+1\right)\ln3}$$

$$\frac{1}{\left(4x+1\right)\ln3}$$

$$\frac{4\ln3}{4x+1}$$

(1;3)

(-5;-2)

$$\left(1;+\infty\right)$$

$$\left(-\infty;3\right)$$

8 (m/s)

1 (m/s)

3 (m/s)

4 (m/s)