log_p(q) = 1/log_q(p), so
x^2 = 2x-1
x = 1
If log_P(Q) = x^2 and log_Q(P)=1/(2x-1) find x.
4 answers
did you mean:
logPQ = x^2 and logQ P = 1/(2x-1) find x. ?????
I will assume you do ...
A lesser know property of logs is that
if logab = x
then logb/sub>a = 1/x
that is:
logab = 1/logb/sub>a
e.g. check on your calculator that log5/sub>3 = 1/log3/sub>5
from yours ....
x^2 = 1/[1/(2x - 1) ] = 2x - 1
x^2 - 2x + 1 = 0
(x-1)^2 = 0
x-1 = 0
x = 1
logPQ = x^2 and logQ P = 1/(2x-1) find x. ?????
I will assume you do ...
A lesser know property of logs is that
if logab = x
then logb/sub>a = 1/x
that is:
logab = 1/logb/sub>a
e.g. check on your calculator that log5/sub>3 = 1/log3/sub>5
from yours ....
x^2 = 1/[1/(2x - 1) ] = 2x - 1
x^2 - 2x + 1 = 0
(x-1)^2 = 0
x-1 = 0
x = 1
argghhhh, that's what you get by trying to be fancy with code.
good to know it works, just forgot to close the one loop
good to know it works, just forgot to close the one loop
I always copy/paste the ? pairs, then fill in the contents.
I've been stung before, too!
I've been stung before, too!