Question

if universal set ={3,4,5,6,7,8,9,10,11,12,13}
if A ={2x:xEN} and B={3x : xEN}
find the following
1 . n(a)
2 . n(b)
3 . A1 compliment
4 . A union B
5 . A intersection B
pls find all 5 answers correctly step by step want correct answer very fast ​

Answer 1

Taking the set of natural numbers as the universal set, write down the complements of the following sets:

(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:xϵN and 2x+1>10}

Medium

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