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Mathematics 19 Online
OpenStudy (anonymous):

what is the range of the function f(x)=1/(x+1)^2 A)all non-zero real numbers b)all negative numbers c)all positive numbers d)all real numbers

OpenStudy (dumbcow):

anything squared is always positive right? so f(x) = (1/(x+1))^2 f(x) is always positive

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