Question

-2
If A = {3,9,27,81}, then write A in the set builder form.
3. If A = {x:X e N and x < 15} and B= (x:x e N and x S 3},​

Answer 1

Answer:

Correct option is

B

H={a∣a=3

n

,n∈N,n≤5}

Given, H={3,9,27,81,243}

={3

1

,3

2

,3

3

,3

4

,3

5

}

={a∣a=3

n

,n∈N,1≤n≤5}