Question

write the following set using rule method 1.A=1,4,9,16,25​

Answer 1

Step-by-step explanation:

1. A={1, 4, 9, 16, 25}

Here,

All the numbers are perfect squares.

Like,

1² = 1

2² = 4

3² = 9

4² = 16

5² = 25

So, we can write:

A = {x: x = n² , n = 1, 2, 3, 4, 5}

Answer 2

ɴ = 1,2,3,4,5..............