this is a new question
N.B plz write how did u reached the answer
question is in the attachment
Please read this: https://www.physicsforums.com/showthread.php?t=28
ok i am sorry
i think i have to put it in the brain teasers forum ... don't i ?
Please don't post your homework problems as "brain teasers" with the hope that someone will do your work for you.
use the change of base formula and the product of two log arguments formula
argument = stuff which has been logged
Separate names with a comma.