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Posted: Thu Jul 07, 2022 8:27 pm
TRUE OR FALSE
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The domain of f(x, y) = 9-r is the lower half of the disc centered at origin with radius r = 9
The gradient vector of the function f(x, y) = ln(xy) — x³ at the point (-1, 1) is (-2, -1).
The limit: does not exist x-y lim (x,y) →(0,0) x + y
The partial derivative fy(-1,0) of f(x, y) = xe² + y² + sin x is equal to -1.
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The domain of f(x, y) = 9-r is the lower half of the disc centered at origin with radius r = 9
The gradient vector of the function f(x, y) = ln(xy) — x³ at the point (-1, 1) is (-2, -1).
The limit: does not exist x-y lim (x,y) →(0,0) x + y
The partial derivative fy(-1,0) of f(x, y) = xe² + y² + sin x is equal to -1.