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Question -

Write the set {1/2, 2/5, 3/10, 4/17, 5/26, 6/37, 7/50} in the set-builder form.



Answer -

Where,
2 = 12 + 1
5 = 22 + 1
10 = 32 + 1
.
.
50 = 72 + 1
Here we can see denominator is square of numerator +1.
So, we can write the set builder form as
{n/(n2+1): n тИИ N, 1тЙд nтЙд 7}

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