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To solve this problem, we'll proceed as follows:
Now, let's work through each step:
Step 1: We begin by converting each logarithm to the natural logarithm base.
Using the change of base formula, we have:
.
Step 2: Next, simplify the second expression:
.
This follows because in natural logarithms converts to , and thus:
.
Hence, our entire expression now is .
Step 3: Express as a logarithm. Using the properties of logarithms:
, since .
Therefore, the entire expression becomes:
.
By the properties of logarithms, this can also be expressed as:
.
Thus, the expression simplifies directly to:
.
Therefore, the solution to the problem is .
\( \frac{1}{\log_49}= \)
The change of base formula works because both numerator and denominator have the same base. When we divide , we get !
ln means natural logarithm (base e), while log typically means base 10. In , we have both types, but they cancel out to give us 2.
Use it when you see division of logarithms with the same base! Like - both have base 3, so you can convert to .
Any number can be written as a logarithm! Since , we have . Using base 10: .
You could use calculators to get decimal approximations, but the exact algebraic form is much more elegant and shows the mathematical relationships clearly!
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