Question

write A={3,9,27,81}in set builder form

Answer 1

A= 【 x:x 3^n , where n belongs to natural number 】

Answer 2

Hey Friend ☺

☆ Sets ☆

A = { 3 , 9 , 27 , 81 }

Set builder form

A = { x | x = 3^n , n belongs to W & n > 5 }

Hope it helps you

✌