Recent content by chexmix

No. I'll check it out and see what happens. Thank you. EDIT: That was key, of course. Jeez. ::strikes forehead::

Good day, all: We recently hit double/triple integrals in my multivariable calculus course and I have found that my integration abilities are, well, *beyond* rusty ... and so the problem below, which is one of the very first on my current problem set, has me stumped. Homework Statement...

Ahh, I was even further off than I thought. Thanks so much. It makes sense now.

Homework Statement I am working on a homework problem involving partial derivatives. I've been checking my answers against what Wolfram Alpha spits out just for extra assurance. For the following problem Find all the second partial derivatives: v = \frac{xy}{(x-y)}. When I get to the...

I can't say I made a fantastic showing in either Calc I or II. ... but I had been away from math for 28 years when I started again with Pre-Calc a couple of years ago, so I try to be kind to myself.

Substitutions are definitely on my list. I have had Calc I and II (though it was a year ago) and am now reviewing everything for a stab at Calc III in the Fall. I'm running out of review time, so things are getting a little frantic! :eek:

Screwdriver, Thanks for the reply. I guess I was looking for some bit of magic that doesn't exist! :biggrin:

I am brushing up my single-variable calculus, partly by working my way through the 9th edition of Thomas and Finney's Calculus and Analytic Geometry. I'm finding myself stuck at an early problem in antidifferentiation: Homework Equations a) \int sec^{2}x dx = tan x + C b) \int \frac{2}{3}...