(e) Find the solution to the differential equation dy x In x cot y = 0. d.r

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter9: Multivariable Calculus
Section9.2: Partial Derivatives
Problem 31E
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PART E

2. (a) On a particular summer day the temperature function in Celsius is given by
(T(t+7)
T(t) = 20 + 8 cos
12
where t is the time in hours, and t = 0 corresponds to midnight. Calculate the
average temperature between 6am and 10pm.
(b) The region bounded by the curve y = x² +1 and the line y = 3 – x is revolved
about the r-axis to generate a solid. Find the volume of the solid.
2
(c) Find the length of the curve y = 3/2 from x = 1 to x = 3.
(d) Find the area of the surface generated by revolving the curve y = 2Va, 0 < x <
3, about the r-axis.
(e) Find the solution to the differential equation
dy
x In x cot y = 0.
dx
Transcribed Image Text:2. (a) On a particular summer day the temperature function in Celsius is given by (T(t+7) T(t) = 20 + 8 cos 12 where t is the time in hours, and t = 0 corresponds to midnight. Calculate the average temperature between 6am and 10pm. (b) The region bounded by the curve y = x² +1 and the line y = 3 – x is revolved about the r-axis to generate a solid. Find the volume of the solid. 2 (c) Find the length of the curve y = 3/2 from x = 1 to x = 3. (d) Find the area of the surface generated by revolving the curve y = 2Va, 0 < x < 3, about the r-axis. (e) Find the solution to the differential equation dy x In x cot y = 0. dx
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