Question
45. log b sqrt 7x
46. log b sqrt (3/y)
Could someone please explain these?
46. log b sqrt (3/y)
Could someone please explain these?
Answers
Reiny
45.
log<sub>b</sub> √(7x)
= log<sub>b</sub> (7x)^(1/2)
=(1/2 log<sub>b</sub> (7x)
= (1/2) ( log<sub>b</sub> 7 + log<sub>b</sub> x)
do #46 the same way,
except recall that log(A/B) = logA - logB
log<sub>b</sub> √(7x)
= log<sub>b</sub> (7x)^(1/2)
=(1/2 log<sub>b</sub> (7x)
= (1/2) ( log<sub>b</sub> 7 + log<sub>b</sub> x)
do #46 the same way,
except recall that log(A/B) = logA - logB