48. (a) Which is easier, antidifferentiating xe*» with respect to x or with respect to y? Explain. (b) Evaluate xe*y dA, where R = [0, 1] × [0, 1].

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A: (a)

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A:

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A:

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A:

Q: f(x) = 1/(1+e^1/x) a) Find the domain of f. b) Find the inverse of f.  c) Find the range of f.

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