Which of the functions below we need to use to justify the claim: "IR and the interval (-1,1) have the same cardinality."? O r: R → R given by r(x) x2 + 1 O g: R → R given by g(x) = e- - 1 O h: R → Rgiven by h(x) = 2tan(x) O s : R → R given by s(x) Of: R → R given by f(æ)

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A: Please check step 2 for the solution.!

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A: Option B and E  Are true.

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A: We will find out the required limit.

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A: a.