Evaluate 125⁻²/³.
- (a)Evaluate 125⁻²/³.[1]
- (b)Simplify (a³/4a)⁻¹/².[2]
Mark scheme
Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.
- [1] (a) 1/5 or 0.2 final answer
- [2] (b) a³/8 final answer
- [1] B1 for answer aᵏ/8, k ≠ 0
- [1] M1 for one of the following seen (a⁶/²) or (a⁻¹/²) or a³/64 or 2³/a² or better
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