Purchase Solution

# Integrating Differential Equations

Not what you're looking for?

1. Consider the following differential equation:
(1-c/r)(dt/dl)2 - (1-c/r)-1(dr/dl)2 = 0
(a) Show that this equation can be written as
dr/dt = &#61617;(1-c/r)
(b) Solve the above equation for t(r). Please evaluate integrals by hand.

Take c to be a constant

Please see the attached file for the fully formatted problems.

keywords: integration, integrates, integrals, integrating, double, triple, multiple

##### Solution Summary

A differential equation is integrated. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.

##### Solution Preview

Please see the attached file for the complete solution.
Thanks for using BrainMass.

1. Consider the following differential equation:
(1-c/r)(dt/dl)2 - (1-c/r)-1(dr/dl)2 = 0 ....................(*)
(a) Show that this ...

Solution provided by:
###### Education
• BSc , Wuhan Univ. China
• MA, Shandong Univ.
###### Recent Feedback
• "Your solution, looks excellent. I recognize things from previous chapters. I have seen the standard deviation formula you used to get 5.154. I do understand the Central Limit Theorem needs the sample size (n) to be greater than 30, we have 100. I do understand the sample mean(s) of the population will follow a normal distribution, and that CLT states the sample mean of population is the population (mean), we have 143.74. But when and WHY do we use the standard deviation formula where you got 5.154. WHEN & Why use standard deviation of the sample mean. I don't understand, why don't we simply use the "100" I understand that standard deviation is the square root of variance. I do understand that the variance is the square of the differences of each sample data value minus the mean. But somehow, why not use 100, why use standard deviation of sample mean? Please help explain."
• "excellent work"
• "Thank you so much for all of your help!!! I will be posting another assignment. Please let me know (once posted), if the credits I'm offering is enough or you ! Thanks again!"
• "Thank you"
• "Thank you very much for your valuable time and assistance!"

##### Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

##### Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.