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1.2.12 The modulus function (A-level only)

Card 1 of 20

Evaluate ∣3−8∣+∣−4∣|3-8|+|-4|∣3−8∣+∣−4∣.

A

999

B

For every real xxx, ∣x∣≥0\boxed{|x|\ge 0}∣x∣≥0​.

C

1<x<71<x<71<x<7

D

Equal moduli satisfy ∣a∣=∣b∣⟺a2=b2\boxed{|a|=|b|\Longleftrightarrow a^2=b^2}∣a∣=∣b∣⟺a2=b2​.

Card 1 of 20

1.2.12 The modulus function (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.2.12 The modulus function (A-level only)

20 flashcards on OCR A Level Maths 1.2.12 The modulus function (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

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