Question
Edexcel Paper 3H — Higher (QWC)
A solution to x³ + x − 5 = 0 is to be found by the iteration xₙ₊₁ = (5 − xₙ)^(1/3) starting at x₀ = 1.5.
(a) Find x₁, x₂, x₃ each to 4 decimal places. (3 marks) (b) State the value of the root to 2 decimal places. (1 mark) (c) Verify your answer by substituting it back into the original equation. (1 mark, QWC)
5 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.