http://img18.imageshack.us/img18/9839/differential.jpg

Please help solve this question, Im having difficulty with it. Thanks.

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- Mar 13th 2009, 04:03 PMronaldo_07Differential
http://img18.imageshack.us/img18/9839/differential.jpg

Please help solve this question, Im having difficulty with it. Thanks. - Mar 13th 2009, 04:53 PMHallsofIvy

Differentiate the first equation to get . From the second equation, .

From the first equation again, so .

That is, . Can you solve that?

That will have, of course, two constants in the general solution. To find , use so as not to introduce more constants. - Mar 14th 2009, 12:04 PMronaldo_07
I got is this correct?