4024/12 May/Jun 2025, Question 7: Zero and Negative Indices
Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 3 marks
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The question, in short
Evaluate two numerical expressions: a cube root and a negative power.
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Part (a) · 1 mark
Find the cube root of 125.
- 15 × 5 × 5 = 125, so ∛125 = 5
Answer5
Part (b) · 2 marks
Evaluate 4 raised to the power −2.
- 14⁻² = 1/4²
- 2= 1/16
Answer1/16 or 0.0625
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