Exercise 3A-2 e: differentiating published solution (presented using 2 methods) gives a different function: x(8-2x^2)^1/2
It should give x(8-2x^2)^-1/2
my solution is -1/2 (8-2x^2)^1/2 +C
(sorry for my lame equations)
OCW Scholar - Single Variable Calculus
Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Yes, that's an error in the solutions provided in the materials. They substituted u^(1/2) when they should have substituted u(-1/2).
Thanks again Creeksider! I'm wondering if there's an errata to the exercise solutions that i've missed?
There are quite a few errors in the exercises and solutions, though most are in exercises that aren't assigned in this course. Take a stab at 2E-4, for example, in the second set of exercises. I sent in my correction for 2C-10 and received a nice thank you note in reply but that was months ago and still no correction has been posted, so I haven't bothered sending corrections for other exercises. Somewhere on the site it says Professor Jerison prepared these exercises but I find it hard to believe anyone who performs so brilliantly in lecture could do such a poor job on these exercises, so my guess is that it was an assistant who could have used closer supervision. Unfortunately I'm taking my time getting around to exercises beyond the third set, so I may not be able to help if you run into further issues.