| Exam Board | OCR |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Indices and Surds |
| Type | Expand and simplify surd expressions |
| Difficulty | Easy -1.2 This is a straightforward C1 question testing basic surd manipulation: rationalizing a simple denominator and expanding brackets with surds. Both parts require only direct application of standard techniques with no problem-solving or insight needed, making it easier than average. |
| Spec | 1.02b Surds: manipulation and rationalising denominators |
3. (i) Express $\frac { 18 } { \sqrt { 3 } }$ in the form $k \sqrt { 3 }$.\\
(ii) Express $( 1 - \sqrt { 3 } ) ( 4 - 2 \sqrt { 3 } )$ in the form $a + b \sqrt { 3 }$ where $a$ and $b$ are integers.\\
\hfill \mbox{\textit{OCR C1 Q3 [4]}}