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a0a502a091 Now, as we saw in the separable differential equation section, this is quadratic in y and so we can solve for y(x) by using the quadratic formula. To fix this problem you will need to put your browser in "Compatibly Mode" (see instructions below). The remaining examples will not be as long. Therefore, we will use (5) as a test for exact differential equations. Algebra [Notes] [Practice Problems] [Assignment Problems] Calculus I [Notes] [Practice Problems] [Assignment Problems] Calculus II [Notes] [Practice Problems] [Assignment Problems] Calculus III [Notes] [Practice Problems] [Assignment Problems] Differential Equations [Notes] Extras Here are some extras topics that I have on the site that do not really rise to the level of full class notes. So, Ill use the first one. Therefore, if a differential equation is exact and (x,y) meets all of its continuity conditions we must have. Another option for many of the "small" equation issues (mobile or otherwise) is to download the pdf versions of the pages. Close the Menu The following list of questions/complaints about this site I am constantly getting emails about so I decided to put the answers to them here in a effort to get them answered quicker. This will be especially useful if it turns out that the differential equation is not exact, since in this case (x,y) will not exist.
Site Help - A set of answers to commonly asked questions. It would be a waste of time to try and find a nonexistent function! So, let's see if we can find a test for exact differential equations. Note for Internet Explorer Users If you are using Internet Explorer in all likelihood after clicking on a link to initiate a download a gold bar will appear at the bottom of your browser window that will allow you to open the pdf file or save it. All this means that I just don't have a lot of time to be helping random folks who contact me via this website. Let me know what page you are on and just what you feel the typo/mistake is. We now have three possible intervals of validity. Recall that in integration we are asking what function we differentiated to get the function we are integrating. Its not a bad thing to verify it however and to run through the test at least once however. So, it looks like the - is the one that we need.