**Calculus Optimization Problems?**

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*A poster is to have an area of 180 inches^2 with 1 inch margins at the bottom and sides and a 2 inch margin at the top. What dimensions will give the largest printed area?*

A box with an open top is to be constructed from a square piece of cardboard 3ft wide by cutting out a square from each of the four corners and bending the sides. Find the largest volume the box can have.

your poster question has something wrong, an optimum value does not exist.

however i solved your second question and it is right here :-

http://i678.photobucket.com/albums/vv149/sathi_m/untitled.jpg

**Optimization Problem #1**

I was able to find good info from your blog

posts.