OCR MEI C1 2014 June — Question 1 5 marks

Exam BoardOCR MEI
ModuleC1 (Core Mathematics 1)
Year2014
SessionJune
Marks5
PaperDownload PDF ↗
Mark schemeDownload PDF ↗
TopicIndices and Surds
TypeSimplify algebraic expressions with indices
DifficultyEasy -1.3 This is a straightforward indices question testing basic recall and application of index laws. Part (i) requires recognizing 27 as 3³ and applying fractional indices (routine calculation). Part (ii) involves standard algebraic manipulation with indices using laws of exponents. Both parts are mechanical exercises with no problem-solving or conceptual insight required, making this easier than average for A-level.
Spec1.02a Indices: laws of indices for rational exponents

1
  1. Evaluate \(\left( \frac { 1 } { 27 } \right) ^ { \frac { 2 } { 3 } }\).
  2. Simplify \(\frac { \left( 4 a ^ { 2 } c \right) ^ { 3 } } { 32 a ^ { 4 } c ^ { 7 } }\).

1 (i) Evaluate $\left( \frac { 1 } { 27 } \right) ^ { \frac { 2 } { 3 } }$.\\
(ii) Simplify $\frac { \left( 4 a ^ { 2 } c \right) ^ { 3 } } { 32 a ^ { 4 } c ^ { 7 } }$.

\hfill \mbox{\textit{OCR MEI C1 2014 Q1 [5]}}