SOLUTION: I have never understood how to do these type of problems.! Can you help. Question: Evaluate : log 7 (1/49) Choices: (A) 2 (B) -3 (C) 3 (D) -2 Thank you

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: I have never understood how to do these type of problems.! Can you help. Question: Evaluate : log 7 (1/49) Choices: (A) 2 (B) -3 (C) 3 (D) -2 Thank you      Log On


   

Question 31745: I have never understood how to do these type of problems.! Can you help.
Question:
Evaluate : log 7 (1/49)
Choices:
(A) 2
(B) -3
(C) 3
(D) -2
Thank you
Answer by mukhopadhyay(490) About Me  (Show Source):
You can put this solution on YOUR website!
log (base7) (1/49)
= log(base7) (1/7)^2
= log(base7)(7^-2)]
= -2 log(base7) 7
= -2
Correct answer is D