Question

Set A is the set of natural between 12and 21

Answer 1

A = { 13, 14, 15, 16, 17, 18, 19, 20 }

As,

A = { a : a ∈ ℕ and 12 < a < 21}

Answer 2

Step-by-step explanation:

a = ( 13 , 14 ,15 ,16 ,17, 18 ,19 ,20)