**Q6: **

Given that , , and , find the value of expressing your answer in simplest form.

**Q7: **

What is the conjugate of ? Express your answer in simplest form.

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**Q8: **

Simplify by rationalizing the denominator.

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**Q9: **

Given that and , find the value of .

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**Q10: **

Given that and , find the value of .

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**Q11: **

Given that and , express in terms of .

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**Q12: **

Simplify .

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**Q13: **

Given that and , find expressing your answer in simplest form.

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**Q14: **

Express in its simplest form.

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