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If xgt2 is a solution of the equation ...

If `xgt2` is a solution of the equation
`|log_sqrt3x-2|+|log_3x-2|=2`, then the value of x is

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To solve the equation \( | \log_{\sqrt{3}} x - 2 | + | \log_{3} x - 2 | = 2 \) given that \( x > 2 \), we will follow these steps: ### Step-by-Step Solution 1. **Rewrite the logarithms**: We know that \( \log_{\sqrt{3}} x = \frac{\log_{3} x}{\log_{3} \sqrt{3}} = \frac{\log_{3} x}{\frac{1}{2}} = 2 \log_{3} x \). Thus, we can rewrite the equation: \[ |2 \log_{3} x - 2| + |\log_{3} x - 2| = 2 \] 2. **Let \( y = \log_{3} x \)**: Substituting \( y \) into the equation gives us: \[ |2y - 2| + |y - 2| = 2 \] 3. **Analyze the absolute values**: We will consider different cases based on the value of \( y \): - **Case 1**: \( y \geq 2 \) - Here, \( |2y - 2| = 2y - 2 \) and \( |y - 2| = y - 2 \). - The equation becomes: \[ (2y - 2) + (y - 2) = 2 \implies 3y - 4 = 2 \implies 3y = 6 \implies y = 2 \] - Since \( y \geq 2 \), this solution is valid. - **Case 2**: \( 1 \leq y < 2 \) - Here, \( |2y - 2| = 2 - 2y \) and \( |y - 2| = 2 - y \). - The equation becomes: \[ (2 - 2y) + (2 - y) = 2 \implies 4 - 3y = 2 \implies 3y = 2 \implies y = \frac{2}{3} \] - However, \( \frac{2}{3} < 1 \), so this solution is not valid. - **Case 3**: \( y < 1 \) - Here, \( |2y - 2| = 2 - 2y \) and \( |y - 2| = 2 - y \). - The equation becomes: \[ (2 - 2y) + (2 - y) = 2 \implies 4 - 3y = 2 \implies 3y = 2 \implies y = \frac{2}{3} \] - Since \( y < 1 \) is satisfied, this solution is valid. 4. **Convert back to \( x \)**: We have two valid solutions for \( y \): - From Case 1: \( y = 2 \) leads to \( \log_{3} x = 2 \implies x = 3^2 = 9 \). - From Case 3: \( y = \frac{2}{3} \) leads to \( \log_{3} x = \frac{2}{3} \implies x = 3^{\frac{2}{3}} = \sqrt[3]{9} \). 5. **Check the condition \( x > 2 \)**: - For \( x = 9 \), \( 9 > 2 \) (valid). - For \( x = \sqrt[3]{9} \approx 2.08 \), \( \sqrt[3]{9} > 2 \) (valid). Thus, the solutions for \( x \) that satisfy the equation are \( x = 9 \) and \( x = \sqrt[3]{9} \). ### Final Answer The values of \( x \) are \( 9 \) and \( \sqrt[3]{9} \).
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