A contour diagram of z = f(z,y) is given in the figure. Determine whether fz, fy, fzz and fyy are positive, negative, or zero at the points P, Q, R, and S. 1. fy at the point P. 2. fz at the point P. 3. fy at the point S. 4. f, at the point S. ✓ 5. fy at the point R. 6. fyy at the point S. 7. f at the point R. 8. fzz at the point Q. ? ? Positive Negative Zero ? ? ? ? ? ? V 9. fzz at the point R. 10. f at the point Q. high med Р high
A contour diagram of z = f(z,y) is given in the figure. Determine whether fz, fy, fzz and fyy are positive, negative, or zero at the points P, Q, R, and S. 1. fy at the point P. 2. fz at the point P. 3. fy at the point S. 4. f, at the point S. ✓ 5. fy at the point R. 6. fyy at the point S. 7. f at the point R. 8. fzz at the point Q. ? ? Positive Negative Zero ? ? ? ? ? ? V 9. fzz at the point R. 10. f at the point Q. high med Р high
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:A contour diagram of z = f(x, y) is given in the figure. Determine whether fz, fy, fzz and fyy are positive, negative, or zero at the points P, Q, R, and S.
1. fy at the point P.
2. fz at the point P.
3. fy at the point S.
4. f, at the point S.
5. fy at the point R.
6. fy at the point S.
✓ 7. f, at the point R.
✓ 8. fzz at the point Q.
✓ 9. fzz at the point R.
10. fy at the point Q.
?
?
Positive
Negative
Zero
?
?
?
?
?
?
high
med
high
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