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ganeshie8 (ganeshie8):
power series of \(\sqrt{\dfrac{1-x}{1+x}}\)
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OpenStudy (thomas5267):
Is there something I don't understand? Isn't power series just a Taylor series expansion? I don't think you need to ask this question with your mastery of math...
OpenStudy (thomas5267):
Something to do with spacetime diagrams?
ganeshie8 (ganeshie8):
not really, its just an approximation of doppler shift of light haha \[f = f_0\sqrt{\dfrac{1-\beta}{1+\beta}} = f_0(1-\beta+\frac{1}{2}\beta^2)\] assuming \(\beta \ll 1\)
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