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
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.