Show the intermediate steps of integration












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I have been reading some material in my General Relativity course and there is something that is just stated and I don't see how the result was produced. I will attach an image below
enter image description here



$k$ and $h$ are constants of integration. I am trying to get the two results but just can't. Like for equation $(9)$, I see that integrating the LHS would bring down the differential. But then I think the RHS would be
$$-intfrac{2}{r}left(frac{mathrm{d}r}{dtau}right),mathrm{d}tau = -intfrac{2}{r},mathrm{d}r = -2ln|r| + h$$
which is obviously not the result.










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    0














    I have been reading some material in my General Relativity course and there is something that is just stated and I don't see how the result was produced. I will attach an image below
    enter image description here



    $k$ and $h$ are constants of integration. I am trying to get the two results but just can't. Like for equation $(9)$, I see that integrating the LHS would bring down the differential. But then I think the RHS would be
    $$-intfrac{2}{r}left(frac{mathrm{d}r}{dtau}right),mathrm{d}tau = -intfrac{2}{r},mathrm{d}r = -2ln|r| + h$$
    which is obviously not the result.










    share|cite|improve this question

























      0












      0








      0







      I have been reading some material in my General Relativity course and there is something that is just stated and I don't see how the result was produced. I will attach an image below
      enter image description here



      $k$ and $h$ are constants of integration. I am trying to get the two results but just can't. Like for equation $(9)$, I see that integrating the LHS would bring down the differential. But then I think the RHS would be
      $$-intfrac{2}{r}left(frac{mathrm{d}r}{dtau}right),mathrm{d}tau = -intfrac{2}{r},mathrm{d}r = -2ln|r| + h$$
      which is obviously not the result.










      share|cite|improve this question













      I have been reading some material in my General Relativity course and there is something that is just stated and I don't see how the result was produced. I will attach an image below
      enter image description here



      $k$ and $h$ are constants of integration. I am trying to get the two results but just can't. Like for equation $(9)$, I see that integrating the LHS would bring down the differential. But then I think the RHS would be
      $$-intfrac{2}{r}left(frac{mathrm{d}r}{dtau}right),mathrm{d}tau = -intfrac{2}{r},mathrm{d}r = -2ln|r| + h$$
      which is obviously not the result.







      calculus integration






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      share|cite|improve this question











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      share|cite|improve this question










      asked Nov 27 at 10:30









      MRT

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