Math, asked by vighneshaarekar, 5 hours ago

Write the following set in listing method F = { x|x∈ 5n, n∈ N,n<_4​

Answers

Answered by mrAdorableboy
2

Step-by-step explanation:

x=3n

where n is a natural number and n<8

So, n can be any digit from 1,2,3,4,5,6,7

So, in roster form

A={3,6,9,12,15,18,21}

Cardinal number = no. of distinct elements in the Set=7

Answered by Anonymous
0

\huge\fbox\pink{✯Answer✯}

Here X = 5n,

And where n is natural number and n<_4

So, n can be any digit from 1,2,3,4,

So, in roster form

A={5,10,15,20}

  • Cardinal number = no. of distinct elements in the Set =4

\huge\boxed{\dag\sf\red{Thanks}\dag}

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