i tried this few times but i couldn't get the answer
with substitution and using
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first one quite straightforward so i think you should show us some progress.
as for the second, just put and your integral becomes thus it remains to compute which shouldn't be that tough.
I had a look at question 1
Using implicit differenitation I found the following
Try to sub these values into the LHS side of the DE and simplyfy, hopefully you will get y.
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