Question
Asked Nov 19, 2019
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f(x,y)=x^2+9y^2

What is the direction in which f changes most rapidly at point (1,2)?

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Expert Answer

Step 1

Step 2

Gradient of the given function is evaluated as follows.

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f (x,y)=(f. (2x,18y)

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Step 3

The gradient of the given function ...

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(x.y)13 (2(1).18(2)) 2.36) 21+36j

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Math

Calculus

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