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**1. Consider a four vector [tex]x^{\mu}[/tex], that is timelike (i.e [tex]x^{2}>0[/tex]. show that it is always possible to find a frame where the coordinates of x are of the form [tex](x^{0'},0)[/tex]. Determine the lorentz transformation relating the initial frame to this particular frame**

**3. I figured that assuming that the starting 4 vector could be of the form [tex](x^{0},0,0,x^{3})[/tex] then the resulting answer would be [tex]x^{'\mu}=\Lambda_{\nu}^{\mu}x^{\mu}**

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