| Exam Board | Edexcel |
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| Module | C1 (Core Mathematics 1) |
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| Topic | Indices and Surds |
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3. (a) Solve the equation
$$x ^ { \frac { 3 } { 2 } } = 27 .$$
(b) Express \(\left( 2 \frac { 1 } { 4 } \right) ^ { - \frac { 1 } { 2 } }\) as an exact fraction in its simplest form.