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(a) Is z an increasing or decreasing function of x?? Of y?? (b) Is fa positive or negative?? How about fy?? (c) Is faz positive or negative? How about fyy?? (d) In what direction does Vf point at point P? in the direction (Give a vector that points generally in the right direction.) In what direction does Vf point at point Q? in the direction -1 [2 2.5 (Again, give a vector that points generally in the right direction.) (e) Is Vf longer at P or at Q? ? ✓ 7/ 2.5 10 6

(a) Is z an increasing or decreasing function of x?? Of y?? (b) Is fa positive or negative?? How about fy?? (c) Is faz positive or negative? How about fyy?? (d) In what direction does Vf point at point P? in the direction (Give a vector that points generally in the right direction.) In what direction does Vf point at point Q? in the direction -1 [2 2.5 (Again, give a vector that points generally in the right direction.) (e) Is Vf longer at P or at Q? ? ✓ 7/ 2.5 10 6

Advanced Engineering Mathematics
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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(a) Is z an increasing or decreasing function of x?? Of y?? (b) Is fa positive or negative?? How about fy?? (c) Is faz positive or negative? How about fyy?? (d) In what direction does Vf point at point P? in the direction (Give a vector that points generally in the right direction.) In what direction does Vf point at point Q? in the direction -1 2.5 (Again, give a vector that points generally in the right direction.) (e) Is Vf longer at P or at Q? ? ✓ 6/ 2,5
Transcribed Image Text:(a) Is z an increasing or decreasing function of x?? Of y?? (b) Is fa positive or negative?? How about fy?? (c) Is faz positive or negative? How about fyy?? (d) In what direction does Vf point at point P? in the direction (Give a vector that points generally in the right direction.) In what direction does Vf point at point Q? in the direction -1 2.5 (Again, give a vector that points generally in the right direction.) (e) Is Vf longer at P or at Q? ? ✓ 6/ 2,5
-1 -1 rn 1 2 CIN 3 2.5 6, 2,5 918 6
Transcribed Image Text:-1 -1 rn 1 2 CIN 3 2.5 6, 2,5 918 6
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