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1 markPaper 1 · Multiple choiceRoots of Equations

CAPE Pure Mathematics Unit 2 · May/June 2019 · Paper 1 · Question Q30

It is given that the equation e^{0.5x} + x^2 - 3.5x = 0 has exactly one root in the interval [0, 1]. \nApplying the interval bisection twice, a more accurate determination of the interval containing the root is

  1. (A)(0, 0.5)
  2. (B)(0.5, 1)
  3. (C)(0, 0.75)
  4. (D)(0.25, 0.5)

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