Need help with these integrating factor problems.

Elena Baby

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Dec 12, 2019
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Hello, I'm new to integrating factors. I have a question. What happens if erfefe.PNG is capable of integration, but the answer isn't some sort of ln, so you can't simplify
gbbgb.PNG
?
Also,I'd be thankful if anyone helped me solve these:

1.vfvfs.PNG
For this one,I tried all three formulas, but I got e^((1+y^2)+arctany).I can simplify (1+y^2),but the examples I have seen by now all seem to only consist of an ln part.

2.gerger.PNG
 

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