Question

Taking the set of natural numbers as the universal set, write down the complements
of the following sets:
{ x:x€N and 2x + 1 > 10 }​

Answer 1

Step-by-step explanation:

(i) {x : x is an even natural number}

(ii) { x : x is an odd natural number }

(iii) {x : x is a positive multiple of 3}

(iv) { x : x is a prime number }

(v) {x : x is a natural number divisible by 3 and 5}

(vi) { x : x is a perfect square }

(vii) { x : x is a perfect cube}

(viii) { x : x + 5 = 8 }

(ix) { x : 2x + 5 = 9}

(x) { x : x ≥ 7 }

(xi) { x : x ∈ N and 2x + 1 > 10 }

Answer 2

Answer:

so the correct answer will be {3,5,7,9}