**Q4: **

Which of the following expressions is equivalent to ?

- A
- B
- C
- D
- E

**Q5: **

Find the value of .

**Q6: **

Find given and .

- A
- B
- C
- D

**Q7: **

Find the value of given .

- A
- B
- C
- D

**Q8: **

Which of the following expressions is equivalent to ?

- A
- B
- C
- D
- E

**Q9: **

Which of the following expressions is equivalent to ?

- A
- B
- C
- D
- E

**Q10: **

Which of the following expressions is equivalent to ?

- A
- B
- C
- D
- E

**Q11: **

Which of the following expressions is equivalent to ?

- A
- B
- C
- D
- E

**Q12: **

Which of the following expressions is equivalent to ?

- A
- B
- C
- D
- E