# structured

1. ### My difficulties in the text _How to Prove It: A Structured Approach, 2 ed_

This is a thread for any major difficulties I come across in How to Prove It: A Structured Approach, 2nd edition by Daniel J. Velleman. This has a counterpart thread at Physics Forums, but it's been a day since I started it with no help yet. The Problem Exercise 1-(c), page 81. Analyze the...
2. ### Differentiation structured questions

Hey, I need help with some questions that I have been stuck with on my crash course to teach myself calculus before school starts. 1) If y = x +\sqrt{x^2 -9} , show that \displaystyle (x^2 -9) \dfrac{d^2y}{dx^2} + x \dfrac{dy}{dx} - y = 0 I have tried to solve for the derivatives of y...
3. ### Structured Settlement Vs. Lump Sum Settlement

Here is the question: There is a person who has worked with asbestos for a large construction company and has contracted Pleural Mesothelioma. The person is entitled to a large settlement from this company but how could that person decide which of the following two options is better? What is the...