Question

) If A = { x : x = 2n, n​

Answer 1

Answer:

Integers less than 5 are ......,−4,−3,−2,−1,0,1,2,3,4

Given 2n i.e .......,2×−2,2×−1,2×0,2×1,2×2,2×3,2×4,

i.e ...... −4,−2,0,2,4,6.8.

The given set i.e.,A can be written as {...,−4,−2,0,2,4,6,8}

(Every set is a subset of universal set i.e., A ⊂ξ)