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Find and sketch the domain of each of the functions o variables: 25 - 4x2 - 9y 1. f(x, y) == 3x + 4y

Find and sketch the domain of each of the functions o variables: 25 - 4x2 - 9y 1. f(x, y) == 3x + 4y 2. f(x, y) = ln(5+ 2xy)

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