Recent content by tak13

Ah yes, I know the part I highlighted should have the Sum of N parenthesis then the Sum of K but I don't know how they get to that answer.

Homework Statement I am doing this multiplication with power series and I am just stuck at this one and other questions that similar to this one. http://img5.imageshack.us/img5/9526/img1261r.jpg Homework Equations The Attempt at a Solution It seems that I suppose to add n-k...

Haha, I just looked over the manual, the second question does seem to be like that. I guess I messed up looking at the manual the first time. For the first one do you mean I should do like this: http://img694.imageshack.us/img694/4568/img1259u.jpg

Homework Statement I am not really good with Series so I having a hard time with these problems. http://img835.imageshack.us/img835/858/img1257d.jpg Homework Equations The Attempt at a Solution The part I am stuck is where I highlighted. The first question: The whole thing is squared so I...

Nevermind, after a major number crunching, I got it. thanks!

Homework Statement Find 3 positive numbers x, y and z for which: their sum is 24 and which maximizes the product: P = x2y3z. Find the maximum product. The Attempt at a Solution Ok, I know how to set up the equations. x + y + z = 24 Delta(F) <2xy3z, 2x2y2z, x2y3> fx = 2xy3z...

So for this one, it is just about the way I write it right? not something wrong the the results? So I checked again, due the the error I made above, the absolute minimum now is 0 at f(0,0) and f(2,6). is that correct? Thanks for reply!

Homework Statement Given function f(x,y) = 3x2 - 2xy + 2y a) find the critical point(s) of f, b) sketch the region R: the triangular region in the xy-plane with vertices (0,0) (0,6) and (3,6) c) find the absolute maximum and absolute minimum of f over R Homework Equations The Attempt at a...