Chapters

## Exercise 1

Solve:

**1**

**2**

**3**

**4**

## Exercise 2

Solve:

**1**

**2**

**3**

**4**

## Exercise 3

Solve:

**1 **

**2**

## Exercise 4

Solve:

**1 **

**2 **

**3 **

**4 **

## Exercise 5

Solve:

## Exercise 6

Solve:

## Exercise 7

Solve:

## Solution of exercise 1

Solve:

**1 **

**2 **

**3 **

**4 **

## Solution of exercise 2

Solve:

**1 **

**2 **

**3 **

**4 **

## Solution of exercise 3

Solve:

**1 **

**2 **

## Solution of exercise 4

Solve:

**1 **

**2 **

**3 **

**4 **

## Solution of exercise 5

Solve:

## Solution of exercise 6

Solve:

## Solution of exercise 7

Solve:

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