ok so here is the problem http://www.flickr.com/photos/23409594@N02/4277189853/ needless to say my answer is not what the book has and i would like to know why. for starts their answer has a natural log in it? i separated the natural log in the problem and took the derivative using the product rule. so where did i go wrong? well take a look at the problem and tell me what you think. sorry its problem number 55.
ok here is my work, it is broken into two parts, the paper i was using was a little long..anways here it is..my final answer was -4/(stuff) you will see it on the paper. thanks in advance.. problem number 55 001 on Flickr - Photo Sharing! and here is part 2 of the same problem problem number 55 002 on Flickr - Photo Sharing!