3. ezy -x³y + 4 x 9. find the directional derivative of f at the point (1,0) along the direction of the rector [5, 12). Let f(x, y) = b. find the vector along which f decreases most rapidly at the point (1,0)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Answer only letter b
3.
Let f(x,y)
ezy -X³ y +4
x
9. find the directional derivative of f at the point (1,0)
along the direction of the vector [5, 12).
=
b. find the vector along which I decreases most rapidly
at the point (1,0)
Transcribed Image Text:3. Let f(x,y) ezy -X³ y +4 x 9. find the directional derivative of f at the point (1,0) along the direction of the vector [5, 12). = b. find the vector along which I decreases most rapidly at the point (1,0)
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