Edexcel IGCSE Math A 1.5.HA Algebraic Sets & Subsets

Practise listing members of sets defined by algebraic conditions and constructing sets that satisfy subset restrictions.

Exam points

test each candidate value against the algebraic condition before listing the set
distinguish membership from subset notation when interpreting a condition
construct one valid set whose elements and subset relations satisfy every restriction

[Maximum number: 1]

$14 \mathscr{E}=\{$ positive integers less than 20 $\}$ $A=\{x: x<12\}$ $B=\{x: 7 \leqslant x<16\}$

list the members of one possible set C.

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