**Q3: **

Find the value of given without using a calculator.

- A
- B
- C
- D

**Q4: **

Find, without using a calculator, the value of given where .

- A
- B
- C
- D

**Q5: **

Which of the following is equal to ?

- A
- B
- C
- D
- E

**Q6: **

Find the value of without using a calculator.

- A
- B
- C
- D

**Q7: **

Evaluate without using a calculator.

- A1
- B
- C36
- D18

**Q8: **

Find, without using a calculator, the value of given where .

- A
- B
- C
- D
- E

**Q9: **

Use the addition formula to find an expression for .

- A
- B
- C
- D
- E

**Q10: **

Given that and , determine the possible values of .

- A
- B
- C
- D

**Q11: **

Find the value of given where without using a calculator.

- A
- B
- C
- D

**Q12: **

Knowing that , find and .

- A
- B
- C
- D
- E

**Q13: **

is a triangle where . Find the value of .

- A
- B
- C
- D

**Q14: **

Find the value of given where .

- A
- B
- C
- D

**Q15: **

Find the value of and then without using a calculator.

- A , 6
- B , 8
- C , 16
- D , 6

**Q16: **

Find, without using a calculator, given where .

- A
- B
- C
- D16

**Q17: **

Simplify .

- A
- B
- C
- D

**Q18: **

Find the value of given .

- A
- B
- C
- D

**Q19: **

Find, without using a calculator, the value of given where .

- A
- B
- C
- D

**Q20: **

is a triangle, where the ratio between its lengths , , and is . Find .

- A
- B
- C
- D
- E

**Q21: **

Use the addition formula to find an expression for .

- A
- B
- C
- D
- E

**Q22: **

Find, without using a calculator, the value of given where .

- A
- B
- C
- D

**Q23: **

Which of the following is equal to ?

- A
- B
- C
- D
- E

**Q24: **

Using the half angle formulas, or otherwise, find the exact value of .

- A
- B
- C
- D
- E

**Q25: **

Knowing that , find and .

- A
- B
- C
- D
- E