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For my work below; the book provides 1+2e^(-x) as the answer. If I simply re-write the initial problem with -dx on the RHS, and y-1 in the denominator of LHS I will get the same answer. But why doesn't it work otherwise? Or it does and I can't see why? Where is my working out wrong? (mind...

Hi guys, I'm stuck on something trivial. letting x = (u-4)^2 I get to the correct solution in terms of u: 2u - 8ln|u| + c However, my confusion begins when changing the answer back to be in terms of x. Since x = (u-4)^2 , u = x^(1/2)+4 OR u =-x^(1/2)+4 So shouldn't there be two solutions in...

Anyone else find this topic very tedious and frustrating? Anyway, I’m tired and can’t find how to solve q11. d). Could anyone help out pls

Hi guys, I have a question from this chapter (Proof). Please help, if you can. And if you have questions of your own from this chapter of the cambridge book, pls post them here and I'll try help as well. 2A Q13. Following directly the explanation of the question, it is clear that we have a)...

Hi guys, I have a few questions about this chapter. Please help, if you can. And if you have questions of your own from this chapter of the cambridge book, pls post them here and I'll try help as well. My questions: 1F Q12.a) After drawing the graph and looking at the answers, it's clear that...