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Solución
To solve the logarithmic equation:
Step 1: Understand the Logarithmic Equation
The equation
asks the question: “To what power must 3 be raised to obtain
?”
Mathematically, this can be rewritten using the definition of a logarithm:
Step 2: Solve for
Calculate
:
So,
Subtract 5 from both sides to isolate
:
Step 3: Verify the Solution
It’s important to ensure that the solution makes the original logarithmic expression valid. The argument of a logarithm must be positive:
Since
is positive,
is a valid solution.
Final Answer:
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Como
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Extra Insights
To solve the equation
, we can rewrite this in exponential form. That is,
. Calculating
gives us 9, so we have
. Now, we can solve for
by subtracting 5 from both sides:
Therefore,
.
Isn’t it fascinating how logarithmic functions let us translate between multiplication and addition? Just another way math shows its elegant side!
If you ever get stuck with logarithms, remember to always convert them to exponential form. A common mistake is to forget this step, leading to an incorrect understanding. So, practice this conversion—it’ll save you from some headaches!
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