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What is the value of 2log(8)2-(1)/(3)log...

What is the value of `2log_(8)2-(1)/(3)log_(3)9`?

A

0

B

1

C

2

D

`1//3`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the expression \( 2\log_{8}2 - \frac{1}{3}\log_{3}9 \), we will follow these steps: ### Step 1: Convert the logarithm base We can use the change of base formula for logarithms. The change of base formula states that: \[ \log_{a}b = \frac{\log_{c}b}{\log_{c}a} \] We will convert \( \log_{8}2 \) and \( \log_{3}9 \) to base 2. ### Step 2: Calculate \( \log_{8}2 \) Using the change of base formula: \[ \log_{8}2 = \frac{\log_{2}2}{\log_{2}8} \] Since \( \log_{2}2 = 1 \) and \( \log_{2}8 = 3 \) (because \( 8 = 2^3 \)), we have: \[ \log_{8}2 = \frac{1}{3} \] ### Step 3: Calculate \( \log_{3}9 \) Similarly, we can calculate \( \log_{3}9 \): \[ \log_{3}9 = \frac{\log_{2}9}{\log_{2}3} \] Since \( 9 = 3^2 \), we can also write: \[ \log_{3}9 = 2 \] ### Step 4: Substitute back into the expression Now we can substitute back into the original expression: \[ 2\log_{8}2 - \frac{1}{3}\log_{3}9 = 2 \cdot \frac{1}{3} - \frac{1}{3} \cdot 2 \] This simplifies to: \[ \frac{2}{3} - \frac{2}{3} \] ### Step 5: Final calculation Now we can perform the final calculation: \[ \frac{2}{3} - \frac{2}{3} = 0 \] ### Conclusion Thus, the value of \( 2\log_{8}2 - \frac{1}{3}\log_{3}9 \) is: \[ \boxed{0} \]

To solve the expression \( 2\log_{8}2 - \frac{1}{3}\log_{3}9 \), we will follow these steps: ### Step 1: Convert the logarithm base We can use the change of base formula for logarithms. The change of base formula states that: \[ \log_{a}b = \frac{\log_{c}b}{\log_{c}a} \] We will convert \( \log_{8}2 \) and \( \log_{3}9 \) to base 2. ...
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