Note: Answers to all questions are given at the end of this exercise.

__Question No. 1:
__

**Solve the following questions:**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 2:
__

**Solve the following equations:**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 3:
__

**Solve the following equations:**

**Answers**

**(from left to right)**

** **

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