college algebra q?

1 ⤊

solve d=10 log (I/I ) for I

2006-12-12 15:29:43 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

log(l/l) = log(l) - log(l) according to log laws
so d = 10log(l) - 10log(l)
so d = 0

A good rule to remember is the log of anything that equals 1 is 0
I can be anything it doesn't matter

2006-12-12 15:36:32 · answer #1 · answered by Anonymous · 1⤊ 0⤋

d = 10 log (I/I) = 10 log 1 = 10 * 0 = 0

I can be anything except 0, which would make I/I undefined.

2006-12-13 04:10:26 · answer #2 · answered by Northstar 7 · 0⤊ 0⤋