Edexcel C1 — Question 3

Exam BoardEdexcel
ModuleC1 (Core Mathematics 1)
TopicIndices and Surds
Find the value of
  1. \(81 ^ { \frac { 1 } { 2 } }\),
  2. \(81 ^ { \frac { 3 } { 4 } }\),
  3. \(81 ^ { - \frac { 3 } { 4 } }\).
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