Use the Chain Rule to find the indicated partial derivatives. w - xy + ya + zx, xr cos(), y-rsin(@), z - re; when ,-6.0-을 ar' ae aw ar

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Use the Chain Rule to find the indicated partial derivatives.
w - xy + yz + zx, x-r cos(0), y-rsin(@), z- re;
0 =
when r= 6. 0-
ar' ae
aw
ar
aw
%3D
10.
DETAILS
SCALCETS 14.5.038.MI.
MY ΝΟTES
The radius of a right circular cone is increasing at a rate of 1.2 in/s while its height is decreasing at a rate of 2.3 in/s. At what rate is the volume of the cone changing when the radius is 120 in. and the
height is 190 in.?
in/s
11.
DETAILS
SCALCET8 14.5.039.
MY NOTES
The length t, width w, and height h of a box change with time. At a certain instant the dimensions are t- 5 m and w-h- 3 m, and l and w are increasing at a rate of 6 m/s while h is decreasing at
a rate of 7 m/s. At that instant find the rates at which the following quantities are changing.
(a) The volume.
m/s
(b) The surface area.
m2/s
(e) The length of a diagonal. (Round your answer to two decimal places.)
m/s
Transcribed Image Text:Use the Chain Rule to find the indicated partial derivatives. w - xy + yz + zx, x-r cos(0), y-rsin(@), z- re; 0 = when r= 6. 0- ar' ae aw ar aw %3D 10. DETAILS SCALCETS 14.5.038.MI. MY ΝΟTES The radius of a right circular cone is increasing at a rate of 1.2 in/s while its height is decreasing at a rate of 2.3 in/s. At what rate is the volume of the cone changing when the radius is 120 in. and the height is 190 in.? in/s 11. DETAILS SCALCET8 14.5.039. MY NOTES The length t, width w, and height h of a box change with time. At a certain instant the dimensions are t- 5 m and w-h- 3 m, and l and w are increasing at a rate of 6 m/s while h is decreasing at a rate of 7 m/s. At that instant find the rates at which the following quantities are changing. (a) The volume. m/s (b) The surface area. m2/s (e) The length of a diagonal. (Round your answer to two decimal places.) m/s
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