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latentcorpse
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I'm looking through the solution to a problem and am stuck with some of the maths.
The solution can be found here:
http://www.damtp.cam.ac.uk/user/r.ribeiro/supervisions_files/Cosmo1sol_M2010.pdf
The pages are numbered in the bottom right corner. I am on p12.
We have an expression [itex]1+z \simeq \frac{1}{\dots}[/itex] half way down the page. I can get to here fine.
Then she solves for z. How has she done this? Is it binomial? If so how has that worked? We have two terms here not just the usual [itex](1+x)^n[/itex]
And there is a new term that appears when we solve for z: [itex]H_0^2(t-t_0)^2[/itex]. Where's that from?
Then under that we "invert" to find [itex]t-t_0[/itex] Iliterally have no idea what has happened here!
Thanks for any help!
The solution can be found here:
http://www.damtp.cam.ac.uk/user/r.ribeiro/supervisions_files/Cosmo1sol_M2010.pdf
The pages are numbered in the bottom right corner. I am on p12.
We have an expression [itex]1+z \simeq \frac{1}{\dots}[/itex] half way down the page. I can get to here fine.
Then she solves for z. How has she done this? Is it binomial? If so how has that worked? We have two terms here not just the usual [itex](1+x)^n[/itex]
And there is a new term that appears when we solve for z: [itex]H_0^2(t-t_0)^2[/itex]. Where's that from?
Then under that we "invert" to find [itex]t-t_0[/itex] Iliterally have no idea what has happened here!
Thanks for any help!
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