Question

NOTES
Write the following sets in the set builder form
F={5,10,15,20}
X={8,-8}​

Answer 1

Answer:

{x : x is a natural number upto 20 and divisible by 5}

Hence,  

F={x∣x=5n,n∈N,n≤4}

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Answer 2

Step-by-step explanation:

2 min pls

I will work out