Card 1 of 20
Evaluate ∣3−8∣+∣−4∣|3-8|+|-4|∣3−8∣+∣−4∣.
A
x=1x=1x=1 or x=7x=7x=7.
B
12<x<72\frac{1}{2}<x<\frac{7}{2}21<x<27.
C
∣A∣=0|A|=0∣A∣=0 only when A=0\boxed{A=0}A=0.
D
999
Card 1 of 20
3.1.6 Algebra and functions (A-level only) Flashcards
20 flashcards on CCEA A Level Maths 3.1.6 Algebra and functions (A-level only): the key formulae, methods and definitions you need to recall for AS 1, AS 2, A2 1 and A2 2.