write the set in roster form
A={x:x€N and X²-25=0}
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hiiii
First thing analyze the given data. x ϵ N that implies x is a natural number.
x2 < 25
⇒ x < ±5
As x belongs to the natural number that means x < 5.
All numbers less than 5 are 1,2,3,4.
∴ Roster form will be {1,2,3,4}.
i hope this is right and helps you
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