Recent content by Planckenstein

Same deal. The derivative is 1 + 1/x, which is 1/x shifted up one unit. Goes off into infinity, as well. Unless these have a bounded domain, they both don't have local maxes.

Whoops! The pole is 90 feet long. That's all the information I've been given.

Taking the derivative with respect to x, we get 6x^2 - 6x - 12. Simplified to 6(x^2 - x + 2). That there's a parabola facing up, so it doesn't have a local max, but does have an absolute min.

I've a test soon, and I've been thinking about this, and not quite sure how to approach it. I think I understand the chapter, but I can't seem to get it. A uniform 210lb telephone pole is sticking out over the Grand Canyon (32 feet of it is sticking out) with a massless cat stuck at the end...