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Unit 7

7.6 Finding General Solutions Using Separation of Variables

1 min readโ€ขjune 8, 2020

jacob521684

Jacob Jeffries


AP Calculus AB/BCย โ™พ๏ธ

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๐ŸŽฅWatch: AP Calculus AB/BC - Separable Differential Equations
The separation of variables is a technique for finding general solutions to a differential equation. In this context, โ€œgeneral solutionsโ€ means that we will be solving for a set or family of functions. This may seem like abstract wording, but this idea has already been explored in integration and antidifferentiation: ๐Ÿ’ฏ
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This statement reads as โ€œC is any real number, which implies f(x) + C is confined to a certain set of functions S.โ€ Or, more simply put, this means that there are infinite solutions to Eq. 22, but the solution must include the condition that C is a constant that does not depend on x.
This means that f(x) + C is a general solution. A specific solution for this same example would be: C is a specific number. Differential equations function in a similar way. First, find a general solution, then find a specific solution if you are given more information. ๐Ÿ“–

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