The variables x and y are related by the differential equation: Use the substitution y=xz, where z is a function of x, to obtain the differential equation: My questions sheet has 2 instead of the a, but I get a=1, which is correct? Cheers.
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Originally Posted by Nyoxis The variables x and y are related by the differential equation: Use the substitution y=xz, where z is a function of x, to obtain the differential equation: My questions sheet has 2 instead of the a, but I get a=1, which is correct? Cheers. The a should be a 2. and isloating z' gives .
Originally Posted by danny arrigo The a should be a 2. Ah I see where I went wrong, I forgot to use the product rule when differentiating y=xz, thanks for the help.
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