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Question 1 1 If f(x, y) = 4 - 2x2 - 12 which of the following is/are correct? P. The domain of fis {(x, y)

Question 1 1 If f(x, y) = 4 - 2x2 - 12 which of the following is/are correct? P. The domain of fis {(x, y) | 2x2 + y2 / 4}. Q. The range of f is (0, co). R. The level curves of f are ellipses. O P and R O P and Q O P only O Q only O R only

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