Understanding Integrals: Solving for dt in \frac{dr}{\sqrt{2\frac{GM}{r}+ 2C}

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SUMMARY

The integral of dt = \frac{dr}{\sqrt{2\frac{GM}{r}+ 2C}} can be approached using substitution methods. Specifically, the substitution u = \sqrt{1 + a/x} simplifies the integration process. This technique allows for the reduction of complexity in the integral, making it more manageable for computation. Understanding these substitution techniques is crucial for solving integrals involving square roots and constants effectively.

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PMP
What is the integral of:

[tex]dt= \frac{dr}{\sqrt{2\frac{GM}{r}+ 2C}}[/tex]​

where C is a constant?

I need to integrate this, but I don't know integrals so much. Thanks :rolleyes:
 
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For simplicity, reduce your questions to general ones with as few constants as possible. (you can plug in whatever the specific constants are later). Are you asking how to compute:

[tex]\int \frac{dx}{\sqrt{1+a/x}}[/tex]?

If so, try the substitution [itex]u=\sqrt{1+a/x}[/tex].[/itex]
 
Yes, I am asking that integral. Thank you!
 

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