Step-by-step explanation:
Your answer is correct. I would probably word the answer to part c a little differently. "Gilda did not use a valid logarithmic property. log(a^b) is not the same as (log a)^b. She should have used the power rule: log(a^b) = b log(a)."
Answer:
Arjun's answer is correct. Gilda's answer is incorrect.
Gilda's mistake is not that she did not finish expanding the logs. Her mistake is that she expanded the logs incorrectly. Choice B shows her mistake.
log a^n = n * log a, not (log a)^n
Answer: 1.21426567 • 10^-6
or 1/823543
