Need help with rewriting logarithms
how do I rewrite this function?
Log base 2 (x^2y^3/2)
also need help with this one too
log base 8 (64/square root of x+1)
November 15, 2012
Need help with rewriting logarithms
how do I rewrite this function?
Log base 2 (x^2y^3/2)
also need help with this one too
log base 8 (64/square root of x+1)
3 Comments • Newest first
@GreatGodkt
log laws: when they have the same base: subtraction becomes division.
ie: log_8 (64/square root x+1) = log_8 (64) - log_8 (square root x+1)
Then, you'll remember that SQUARE ROOT is the power 1/2
You can move the power from to the front of the 'log'
ie: log_8 (64) - (1/2)log_8(x+1)
Is that it? or are you trying to rearrange into indices?
EDIT: other equation as follows
Same concept:
log_2[ (x^2) (y^2) ]/ 2
Is log_2 (x^2) + log_2 (y^2) - 2log_2(2) <- note that log_a(a)=1
Then you move the powers to the front
ie: 2log_2(x) + 2log_2(y)-2
do you mind showing me step by step? I would appreciate it.
well I don't even know how to do with x and y.