WMA11/01 Oct 2020, Question 1: Laws of Indices
Pearson Edexcel International AS Level Mathematics · Pure Mathematics 1 (WMA11) · Calculator · 3 marks
The question, in short
Simplify (3pq²)⁴ × 2p√(q⁸) into the form apᵇqᶜ and state the constants a, b and c.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 1(3pq²)⁴ = 81p⁴q⁸
- 22p√(q⁸) = 2pq⁴
- 381p⁴q⁸ × 2pq⁴ = 162p⁵q¹²
- 4a = 162, b = 5, c = 12
Answera = 162, b = 5, c = 12
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