**Q7: **

Determine the value of without using a calculator.

- A
- B
- C
- D
- E3

**Q8: **

What is the value of ?

- A
- B
- C
- D
- E

**Q9: **

Simplify .

**Q10: **

Without using a calculator, find the approximate value of given that .

**Q11: **

Find the approximate value of , given that .

**Q12: **

Given that , find, without using a calculator, the value of correct to four decimal places.

**Q13: **

Given that and , find in terms of and .

- A
- B
- C
- D
- E

**Q14: **

Determine the value of without using a calculator.

**Q15: **

Given that , find the value of .

**Q16: **

Calculate .

**Q17: **

Find .

**Q18: **

Find the value of without using a calculator.

**Q19: **

If , what interval contains ?

- A
- B
- C
- D
- E

**Q20: **

Given that and , round the value of without using a calculator.

- A0.6601
- B
- C1.1461
- D2.3502
- E4.5265

**Q21: **

Find the value of correct to four decimal places.

**Q22: **

Given that , evaluate .

**Q23: **

Find the value of in its simplest form.

**Q24: **

Find the value of without using a calculator.

**Q25: **

Find the value of , giving your answer in its simplest form.