Question

write the following set in roster form
{x | x=3n,e N and n <8}

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Answer 1

Answer:

x={3;6;9;12;15;18;21;24}

hope it helps you

Answer 2

$\huge\underbrace{\tt{To \:Find }}$

the roaster form of the given set .

$\huge\underbrace{\tt{\red{Given}}}$

$\tt{the \:set\: is \:[x/x = 3n \in N \:and \:n<8]}$

solution :

the set says that it has element x, which is equal to 3n

and n is a natural number less than 8

so, n = 1,2,3,4,5,6,7

so, x = 3,6,9,12,15,18,21

so, the set is {3,6,9,12,15,18,21}