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Math Help - Logarithmic Inequality

  1. #1
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    Logarithmic Inequality

    How to solve this inequality?

    ln2(x)≥2-ln(x)


    Thanks in advance!
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  2. #2
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    Re: Logarithmic Inequality

    Quote Originally Posted by JohnTerry View Post
    How to solve this inequality?

    ln2(x)≥2-ln(x)

    What does this have to do with the solution?
    \begin{align*}u^2+u-2 &\ge 0\\ (u+2)(u-1)&\ge 0 \\u\le-2 &\text{ or }u\ge 1\end{align*}.
    Thanks from topsquark
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