Quiz _5 - 12 3 2 2 2 = y x 4 When a cold drink is taken...

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Math 3B Honors – Castroconde Name: Quiz #5 (10.1-10.4) I.D.#: 1. Show that x x y 1 - = is a solution of the differential equation x y y x 2 = + . 2. Use Euler’s method with step size 0.1 to estimate y(0.5) , where y(x) is the solution of the initial-value problem 1 ) 0 ( , = + = y xy y y . 3. Find the orthogonal trajectories of the family
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Unformatted text preview: 12 3 2 2 2 = + y x . 4. When a cold drink is taken from the refrigerator, its temperature is 5ºC. After 25 minutes in a 20ºC room its temperature has increased to 10ºC. When will the temperature of the drink be 15ºC?...
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