Question

Write the following sets in roster form:
$x|x=6p,p\in Iand-2\le p\le 2$

Answer 1

The given set can be written as
Integers lie between $-2$ and $2$ are $-2,-1,0,1,2,$ or $p=-2,-1,0,1,2$

Given $x=6p$ i.e. putting $p=-2,-1,0,1,2,$

we get $x=6\times (-2),6\times (-1),6\times 0,6\times 1,6\times 2$

$=-12,-6,0,6,12$

The given set can be written as $\{-12,-6,0,6,12\}$(roster form)