2. (x² - y²)dx + (x² - 2xy)dy = 0

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Solve the four problems of first order differential equations. 

2. (x² - y²)dx + (x² - 2xy)dy = 0
di
3. Lt + Ri = E, i(0) = i, (L, R, E
dt
4.
e i
=, (L, R, E ei constants )
2
√₁-y²dx - √√₁-
√1 - x²dy = 0, y(0) = 1/3
√3
5. Let y = C(x) be the cost, expressed in euros, of manufacturing "x"
units of a given product. The rate at which the cost changes with
respect to the number of units manufactured is given by the
following differential equation: (x + y²)dx - 2 xydy = 0. Find the cost
as a function of the number of units manufactured, knowing that the
cost of manufacturing 1 unit is €2'00.
Transcribed Image Text:2. (x² - y²)dx + (x² - 2xy)dy = 0 di 3. Lt + Ri = E, i(0) = i, (L, R, E dt 4. e i =, (L, R, E ei constants ) 2 √₁-y²dx - √√₁- √1 - x²dy = 0, y(0) = 1/3 √3 5. Let y = C(x) be the cost, expressed in euros, of manufacturing "x" units of a given product. The rate at which the cost changes with respect to the number of units manufactured is given by the following differential equation: (x + y²)dx - 2 xydy = 0. Find the cost as a function of the number of units manufactured, knowing that the cost of manufacturing 1 unit is €2'00.
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