How do you evaluate log_343 49?

1 Answer
Oct 23, 2016

log_343 49=2/3

Explanation:

"change the base 243 to base 7"

log_343 49=(log_7 49)/(log _7 343)=(log _7 7^2)/(log_7 7^3)=(2*log 7)/(3*log_7 7)

log _7 7=1

log_343 49=(2*1)/(3*1)

log_343 49=2/3