- Do not use a calculator for this question
a)
Find \(a\), given that \(a ^ { 3 } = 64 x ^ { 12 } y ^ { 3 }\).
b)
- Express \(\frac { 81 } { \sqrt { 3 } }\) in the form \(3 ^ { k }\).
- Express \(\frac { 5 + \sqrt { 3 } } { 5 - \sqrt { 3 } }\) in the form \(\frac { a + b \sqrt { 3 } } { c }\), where \(a , b\) and \(c\) are integers.