plz help fan medal and testimonial
which of the following are continuus for all real values of x?
I. f(x)= x^2+5/x^2-1
ii. g(X)= 3/x^2+1
iii. h(X)={x-1}
choices-
ii and iii only
I and ii only
I only
ii only

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I know for a fact that choice b is wrong.

@dan815 @Math2400 @Camila1315 @notyourdroid

what does { } mean?

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