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What is the smallest integer value of c such that the function f(x) = (x^2 + 1)/(x^2 + 1 + c) has a domain of all real numbers?

 Aug 3, 2021
 #1
avatar+34388 
+1

I think it is   c = 0     then the denominator can never be = 0

 Aug 3, 2021

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