**Q5: **

Simplify .

**Q6: **

Simplify .

**Q7: **

Simplify the expression .

- A
- B
- C1
- D

**Q8: **

Determine the solution set of over the set of complex numbers.

- A
- B
- C
- D

**Q9: **

Simplify .

- A
- B1
- C
- D

**Q10: **

Simplify .

- A
- B1
- C
- D

**Q11: **

Simplify .

- A
- B1
- C
- D

**Q12: **

Solve the equation .

- A
- B
- C
- D
- E

**Q13: **

Simplify .

- A
- B 1
- C
- D

**Q14: **

Simplify .

- A
- B 1
- C
- D

**Q15: **

Simplify .

- A
- B
- C
- D 1

**Q16: **

Simplify , given that .

- A
- B 1
- C
- D

**Q17: **

Given that is an integer, simplify .

- A
- B1
- C
- D

**Q18: **

Simplify .

- A
- B
- C
- D
- E

**Q19: **

Simplify .

- A
- B1
- C
- D