Recent content by oswald88

  1. O

    Global Extrema of a Function: Finding the Maximum and Minimum Values

    no idea! need imaginary graph? maybe there isn't any max or min.. so the exercices question is meanless.
  2. O

    Global Extrema of a Function: Finding the Maximum and Minimum Values

    Homework Statement Find max and min value of the function Homework Equations attached. The Attempt at a Solution no graph, because roots aren't real numbers.
  3. O

    What Happens to the Limit of ln(x) + 1/x as x Approaches Zero from the Right?

    above, pitcure of mathematica solution..
  4. O

    What Happens to the Limit of ln(x) + 1/x as x Approaches Zero from the Right?

    Homework Statement Find limit lim x->0+ of lnx+1/x Homework Equations 1/x = ln e^1/x The Attempt at a Solution ln x + ln e^1/x = ln x*e^(1/x) lim x-> 0+ ln x + ln e^1/x = ln 0*inf = ln 0 = - inf lim x-> 0+ Source: my self vs http://www.numberempire.com/limitcalculator.php