Separable differential equationsWatch
Ifyou've copied the question corectly then it's fine - were you given values to calculate k?
- Study Helper
Agree with everyone else - your working is fine
If they'd asked solve "dx/dy=...." then it would be a more interesting question, more in line with their given solution (apart from the "t").
If you're not too busy, could you scroll down Exercise A, Question 12 and check if they did it wrong. I understand that they changed the dependent variable from y to t by mistake, but that's trivial.
Needs to be dx/dy or dx/dt if they meant t.