**Q3: **

Find given where is a positive acute angle.

- A1
- B
- C
- D

**Q4: **

Simplify .

- A
- B
- C
- D

**Q5: **

Simplify .

- A
- B
- C2
- D
- E

**Q6: **

Simplify .

- A2
- B
- C
- D
- E

**Q7: **

Simplify .

- A
- B
- C
- D2
- E

**Q8: **

Find the value of without using a calculator.

- A
- B
- C
- D

**Q9: **

Simplify without using a calculator.

- A
- B
- C
- D

**Q10: **

Simplify without using a calculator.

- A
- B
- C
- D

**Q11: **

Simplify .

**Q12: **

Simplify .

- A
- B
- C
- D

**Q13: **

Simplify .

- A
- B
- C
- D

**Q14: **

Find the value of without using a calculator.

- A
- B
- C1
- D