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11–12Mathematics Extension 2 11–12 Syllabus

Record of changes
Implementation from 2026
Expand for detailed implementation advice

Content

Year 12

The nature of proof
The language and notation of proof
  • Use the formal language of proof, including the terms ‘statement’, ‘proposition’, ‘implication’, ‘converse’, ‘negation’, ‘contradiction’, ‘counterexample’, ‘equivalence’ and ‘contrapositive’

  • Define a statement or proposition as a sentence that is either true or false, but not both

  • Recognise that the converse of a true implication may or may not be true

Illustrations of proofs
  • Use proof by contradiction to prove the truth of mathematical statements

  • Use examples and counterexamples to test the truth of mathematical statements

  • Prove results involving integers

Proof of inequalities
  • Prove results involving inequalities using previously obtained or known inequalities

  • Prove inequalities involving geometry

  • Prove inequalities using graphical or calculus techniques or a combination of both

Further proof by mathematical induction
  • Prove results involving trigonometric, logarithmic, exponential, polynomial or other identities, including the binomial theorem, using mathematical induction

  • Prove inequality results using mathematical induction

  • Prove results in calculus using mathematical induction

  • Explain that a recursive formula, or recurrence relation, is a formula that defines each term of a sequence using a preceding term

  • Prove results involving first-order recursive formulas using mathematical induction

  • Prove geometric results using mathematical induction

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