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1.1.3 Proof by contradiction (A-level only)

Card 1 of 22

The negation of a statement PPP is [     ].

A

aaa and bbb share factor 2 despite being chosen coprime.

B

A rational number can be expressed as ab\frac{a}{b}ba​, where a,ba,ba,b are integers and b≠0b\ne0b=0.

C

Given a supposedly complete prime list p1,…,pnp_1,\ldots,p_np1​,…,pn​, construct N=p1p2⋯pn+1\boxed{N=p_1p_2\cdots p_n+1}N=p1​p2​⋯pn​+1​.

D

The negation of a statement PPP is not PPP.

Card 1 of 22

1.1.3 Proof by contradiction (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.1.3 Proof by contradiction (A-level only)

22 flashcards on OCR (MEI) A Level Maths 1.1.3 Proof by contradiction (A-level only): the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.

Flashcards