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4 marksReasoning and Logic

CAPE Pure Mathematics Unit 1 · 2021 · Paper 2 · Question 1(a)(i)

This section covers Module 1 questions. Let p and q be any two propositions.

Complete the truth table below.

The mark scheme is shown once you've answered.

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Other parts of this question

  1. 1(a)(ii)Hence, state whether the statements ~(p ∨ q) and ~p ∧ ~q are logically equivalent. Justify your response.[2 marks]
  2. 1(b)(i)Write the converse of the statement "n is an integer ⇒ n² is an integer".[1 mark]
  3. 1(b)(ii)Prove that * is closed in ℝ.[3 marks]
  4. 1(b)(iii)Determine whether the operation * is commutative.[2 marks]
  5. 1(c)Calculate the values of a and b.[7 marks]
  6. 1(d)Solve the logarithmic equation log₂ x + log₄ x + log₁₆ x = 7.[6 marks]

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