| Exam Board | OCR MEI |
|---|
| Module | C1 (Core Mathematics 1) |
|---|
| Year | 2011 |
|---|
| Session | January |
|---|
| Topic | Indices and Surds |
|---|
7
- 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.