Solutions · Grade 10 · 22 pages · PDF
Powers and RootsSolutions
Every worksheet question worked in full.
A complete 23-page IGCSE guide to powers and roots. It covers index notation and all seven laws of indices, including zero, negative and fractional indices. It also covers square and cube roots, and the key perfect squares and cubes to memorise. Later sections cover combined index problems, solving equations with indices, calculating with standard form, and an introduction to simplifying surds. These skills are then applied to compound interest, growth and space-travel problems. Every method comes with step-by-step worked examples and common mistakes to avoid. It ends with a summary, a keyword guide and exam tips.
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