Let f : R → R be f(r) = + 1+ \|° (a) Is ƒ everywhere defined? If not, give the domaim (b) Is ƒ onto? If not, give the range. (c) Is ƒ one-to-one? Explain. (d) Is f invertible? If so, what is f-l?

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A: It is partial derivative

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A: Solution of the given problem is below...

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Q: Define f: Z x Z→ Z x Z by f((m, n)) = (3, 2n). Let A = {(n, 0): n ∈Z}. Fina f(A).

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Q: 2. Let f: R → R_be f(x) = 1+ |r|" (a) Is f everywhere defined? If not, give the domain. (b) Is f…

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A: Given that,

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A: Proceed as shown below

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