sqrt

  1. C

    evaluate the following : lim x >>> + infinity ( x / sqrt x - 2 )?

    Limits please help!!!!!? evaluate the following limits: lim x >>> + infinity ( x / sqrt x - 2 ) lim x >>> 2+ ( x/ sqrt x - 2) please explain ur answers. thanks
  2. U

    How do you integrate sqrt( (x^2) +1) ) / (x^2)? I know the answer but my book

    doesn't show the steps...? the answer is ( -sqrt( (x^2) + 1) / x ) + ln ( x + sqrt( (x^2) +1) ) + C... I think you do integration by parts where u = sqrt( (x^2) + 1) and dv = du/ (u^2) and du = (2u / 2 sqrt( (x^2) + 1) ) and v = - 1/ u. However, when I go through with the integration I can only...
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