Question

how to find log .0078654 ?

Answer 1

What are you allowed to use? A calculator, tables?

Answer 2

Tables

Answer 3

Oh my lol I never had to use log tables

Answer 4

(Texbtooks still print these?)

Answer 5

Textbooks*

Answer 6

I can answer in calculator but when i'm using the tables. Argh, cant find the answer..

Answer 7

Do you think changing it to Exponential Notation would help you out?

Answer 8

Assuming base 10
log .0078654 = log( (7.8654) x (10^-3) )

Answer 9

\[ \log (0.0078654)=\log (7.8654\times10^{-3})\]\[\qquad\qquad=\log (7.8654)+\log(10^{-3})\]\[\qquad\quad=\log (7.8654)-3\log(10)\]\[\quad\quad=\log (7.8654)-3\]

Answer 10

log .0078654 = log( (7.8654) x (10^-3) ) =
log(7.8654) + log(10^-3) =
log(7.8654) look up in table + (-3)