Question

Express in the form 1:n
6:12
.

Answer 1

6:12=1:2

the ratio is expressed in the form of 1:n

where n =2

Answer 2

Answer:

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

Here ,

1,2,3,4,5,are all natural numbers and 1,4,9,16,25,25 are there squares.

we may write the set A as

A={×:× is the square of a natural number}

or

A={×:×= n² , where n £N}