10. Let f(x,y) =x2 -xy + y2 -y. Find the direction u for which Duf(1, -1) = 4.

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Chia Chung

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2024/01/03

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2. Evaluate the line integral by two methods: (a) directly and (b) using Green's Theorem. where C consists of the line segments from (0,1) to (0,0) and from (0,0) to (1,0) and the parobola y = 1 -x2 from (1,0) to (0,1).

10. Let f(x,y) =x² -xy + y² -y. Find the direction u for which D_uf(1, -1) = 4.

詳解 (共 1 筆)

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