log491=
To solve this problem, we'll follow these steps:
- Step 1: Identify the property of logarithms that relates inverses.
- Step 2: Apply this property to the given expression.
- Step 3: Compare with provided choices to identify the correct option.
Now, let's work through each step:
Step 1: The problem asks us to find the expression equal to log491.
Step 2: We use the logarithmic property logba=logab1. Thus, replacing b with 9 and a with 4, we have:
log491=log94.
Step 3: Comparing this result to the provided choices, we find that the correct answer is log94, corresponding to Choice 1.
Therefore, the solution to the problem is log94.