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23. Solve for [tex]\(x\)[/tex]:

[tex]\[ \log _2 x \cdot \log _x\left(\frac{\log _{|x|} \sqrt[9]{3}}{\log _{\sqrt{3}}|x|}\right)=-1 \][/tex]


Sagot :

Certainly! Let's systematically break down and solve the given equation step-by-step.

Given equation:
[tex]\[ \log_2(x) \cdot \log_x\left(\frac{\log_{|x|} \sqrt[9]{3}}{\log_{\sqrt{3}} |x|}\right) = -1 \][/tex]

First, recognize the logarithmic expressions and simplify them using properties of logarithms.

1. Simplify [tex]\(\log_{|x|} \sqrt[9]{3}\)[/tex]:
[tex]\[ \log_{|x|} \sqrt[9]{3} = \log_{|x|}(3^{1/9}) \][/tex]
Using the logarithmic property [tex]\(\log_b(a^c) = c \log_b(a)\)[/tex], we can write:
[tex]\[ \log_{|x|} (3^{1/9}) = \frac{1}{9} \log_{|x|} (3) \][/tex]

2. Simplify [tex]\(\log_{\sqrt{3}} |x|\)[/tex]:
[tex]\[ \log_{\sqrt{3}} |x| = \frac{\log |x|}{\log \sqrt{3}} \][/tex]
Since [tex]\(\sqrt{3} = 3^{1/2}\)[/tex], we can write:
[tex]\[ \log_{\sqrt{3}} |x| = \frac{\log |x|}{\frac{1}{2} \log 3} = \frac{2 \log |x|}{\log 3} \][/tex]

3. Combine these results into the given equation:
Substitute the simplified results into the equation:
[tex]\[ \log_2(x) \cdot \log_x\left(\frac{\frac{1}{9} \log_{|x|} (3)}{\frac{2 \log |x|}{\log 3}}\right) = -1 \][/tex]
Simplify the fraction inside the logarithm:
[tex]\[ \frac{\frac{1}{9} \log_{|x|} (3)}{\frac{2 \log |x|}{\log 3}} = \frac{\log_{|x|} (3)}{18 \log |x| / \log 3} = \frac{(\log 3) / (\log |x|)}{18 \log |x| / \log 3} = \frac{\log 3}{18 \log |x|} \][/tex]
Thus,
[tex]\[ \log_2(x) \cdot \log_x\left(\frac{\log 3}{18 \log |x|}\right) = -1 \][/tex]

4. Simplifying the logarithm inside further:
Use the property [tex]\(\log_x(a/b) = \log_x(a) - \log_x(b)\)[/tex]:
[tex]\[ \log_2(x) \cdot \left(\log_x(\log 3) - \log_x(18 \log |x|)\right) = -1 \][/tex]

5. Expanding [tex]\(\log_x(18 \log |x|)\)[/tex]:
[tex]\[ \log_x(18 \log |x|) = \log_x(18) + \log_x(\log |x|) = \frac{\log 18}{\log x} + \log_x(\log |x|) \][/tex]

Combine terms:
\[
\log_2(x) \cdot \left(\frac{\log (\log 3) -\left(\log 18 + \log (\log |x|)\right) }{\log(x)}\right) = -1
= -\frac{\log (\log 3) -\left(\log 18 + \log (\log |x|)\right )}{\log(x)} = \frac{1}{x^2}
}
We can expect \(\boxed{{3}