5. Let (ryz)" a) Compute the directional derivate of f(ay2) at the point (1.1,-1) in the direction from the point (0. – 1, - 1) to the point (2,3, - 2). b) Which values can the directional derivate of f(r.a) have at the point (1,1, - 1)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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5. Let
(ryz)"
S(a) -
a) Compute the directional derivate of f(ay2) at the point (1.1,-1) in the direction from
the point (0. – 1, - 1) to the point (2,3, - 2).
b) Which values can the directional derivate of f(r.) have at the point (1,1, - 1)
=) In what directions at the point (1.1, - 1) does the funetion f (,y,=) decrease at ol
its minimal cate at that point?
Transcribed Image Text:5. Let (ryz)" S(a) - a) Compute the directional derivate of f(ay2) at the point (1.1,-1) in the direction from the point (0. – 1, - 1) to the point (2,3, - 2). b) Which values can the directional derivate of f(r.) have at the point (1,1, - 1) =) In what directions at the point (1.1, - 1) does the funetion f (,y,=) decrease at ol its minimal cate at that point?
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