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Use a graph and/or level curves to find the local maximum and minimum values and saddle...
Use a graph and/or level curves to find the local maximum and minimum values and saddle points of the function. Then use calculus to find these values precisely. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)
f(x, y) = sin(x) + sin(y) + cos(x + y) + 9, 0 ≤ x ≤ π/4, 0 ≤ y ≤ π/4
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Answer #1
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