**Q5: **

Find the value of given where .

- A
- B
- C
- D

**Q6: **

Find the possible values of given that .

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- B
- C
- D

**Q7: **

Knowing that , find .

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- B
- C
- D
- E

**Q8: **

Find the set of values satisfying where .

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- B
- C
- D

**Q9: **

Find the set of values satisfying where .

- A
- B
- C
- D

**Q10: **

Find the set of values satisfying where .

- A
- B
- C
- D

**Q11: **

Find the set of values satisfying where .

- A
- B
- C
- D

**Q12: **

Simplify .

- A
- B
- C
- D

**Q13: **

Simplify .

- A
- B
- C
- D1

**Q14: **

Simplify .

- A
- B
- C
- D

**Q15: **

Simplify .

- A
- B
- C
- D

**Q16: **

Simplify .

- A
- B
- C
- D

**Q17: **

Simplify .

- A
- B1
- C
- D

**Q18: **

Simplify .

- A
- B
- C
- D

**Q19: **

Suppose that with , and that is the largest angle between and for which . Find the exact value of .

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- C
- D

**Q20: **

Find the value of given .

**Q21: **

is a triangle where and . Find without using a calculator.

- A
- B
- C
- D

**Q22: **

Simplify .

- A
- B
- C
- D

**Q23: **

Simplify .

- A 1
- B
- C
- D