Question

Write the set B = {x:x epsilon Integer, (2x-1)(3x + 2) = 0} in the roster form
i) B = Ø i
i) B = {phi}
iii) B = { 1/2,-2/3 }
iv) B = {-1/2,2/3 }​

Answer 1

Answer:

ii) B={x:x is a natural number less than 6}

The natural numbers less than 6 are 1,2,3,4,5

So, the elements of this set are 1,2,3,4, and 5 only.

Therefore, the given set can be written in roster from as

B={1,2,3,4,5}