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Question
Work out (1)5, (–1)3, (–1)4, (–10)3, (–5)4
Sum
Solution
i) (1)5 = 1 × 1 × 1 × 1 × 1 = 1
ii) (–1)3 = (– 1) × (– 1) × (– 1) = 1 × (– 1) = – 1
iii) (–1)4 = (–1) × (–1) × (–1) × (–1) = 1 ×1 = 1
iv) (–10)3 = (–10) × (–10) × (–10) = 100 × (– 10) = – 1000
v) (–5)4 = (–5) × (–5) × (–5) × (–5) = 25 × 25 = 625
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