Question

What is the elements of set F={x:x∈N, √x^2+1 = 2 (the end of the square root are after 1)}

Answer 1

Answer:

F will be an empty set!

Step-by-step explanation:

√(x^2 +1)=2

x^2+1= 4 (squarring both sides)

x^2 =3

x = +/- √3

but both are not natural numbers.....and all elements of f are natural so no elements exists in f

Answer 2

Answer:

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