Let f(x, y) = x/y. Then the directional derivative of f in the direction of √2 point (1, 1) is ○ (1, 1) ○ (1/y, —x/y²) 0 2/√√/2 None of the above at the
Let f(x, y) = x/y. Then the directional derivative of f in the direction of √2 point (1, 1) is ○ (1, 1) ○ (1/y, —x/y²) 0 2/√√/2 None of the above at the
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Let f(x, y) = x/y. Then the directional derivative of f in the direction of
point (1, 1) is
O (1,1)
○ (1/y, -x/y²)
0
2/√√/2
O None of the above
1
√2' √2,
at the
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