I have come across this question:
dy/dx - y = xy^5
How do you solve this?
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I have come across this question:
dy/dx - y = xy^5
How do you solve this?
It's Bernoulli.
Oh yeh, thanks. I'll have an attempt now :)Quote:
Originally Posted by Ackbeet
Right. Let me know if you have difficulty.
Quick question:Quote:
Originally Posted by Ackbeet
If z = y^-4 , how do you get y on it's own?
y = z^4 ?
Or y = z^-1/4 ?
The second method is correct. Or you can do implicit differentiation to translate the DE to z's. One possibly useful equation is y^4 = 1/z.