Comments on: log / exponential question?

By: como

como — Sat, 15 Sep 2007 18:32:40 +0000

Let logs be logs to base 10 :-
3^x = 10
x log 3 = log 10
x log 3 = 1
x = 1 / log 3
x = 2.096

By: Mark B

Mark B — Thu, 13 Sep 2007 09:18:21 +0000

3^x = 10
x lg 3 = lg 10
x = lg10/lg3
use calculator

By: Sangita J

Sangita J — Mon, 10 Sep 2007 08:22:00 +0000

x log 3 = log 10

x = log 10/log 3

x = 1/.477

x = 2.096

By: cosmo_katts

cosmo_katts — Sun, 09 Sep 2007 07:58:25 +0000

x log 3 = log 10

x = log 10/log 3

x = 1/.477

x = 2.096

By: awdp106

awdp106 — Sun, 09 Sep 2007 00:28:20 +0000

I choose log to the base e, ln, because it is nicer :).

so, 3^x=10. take logs => ln(3^x)=ln(10) => xln3=ln10 =>
x=ln10/ln3