Question

Let setA=(x is a natural number)B=(x is an integer) find AUB​

Answer 1

Answer:

A = {1,2,3,4,5,...}

Bc= {...,-5,-4,-3,-2,-1,0,1,2,3,4,5,...}

Therefore,

AUB = {...,-5,-4,-3,-2,-1,0,1,2,3,4,5,...}

=> AUB = B

This is your answer