(b) (5 points) Find the radius of convergence of the Taylor expansion in Prob- lem(a).

詳解 (共 1 筆)

Chia Chung

詳解 #5774789

2023/04/12

<Solution>ln(1...

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5. (10 points) Let u(x,y) be a differentiable function with (4,1) = 2. dy Suppose that x = st and y= and define h(s, t) = u(x(s, t),y(s, t). At the point (2,2), find a unit vector u in the st-plane such that h increases most rapidly in the direction. (4, 1) = 1 and

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(b) (5 points) Find the radius of convergence of the Taylor expansion in Prob- lem(a).

詳解 (共 1 筆)

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