-1 = log(2+radical(5))

I don't understand how its equal to -1?

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- Dec 16th 2010, 02:21 PMHELPHELPHELPLogs and Radicals
-1 = log(2+radical(5))

I don't understand how its equal to -1? - Dec 16th 2010, 02:27 PMPlato
- Dec 16th 2010, 02:28 PMdwsmith
What base is the log?

Base 10 doesn't equal -1.

Base e doesn't equal -1. - Dec 16th 2010, 03:03 PMHELPHELPHELP
This the entire question, but someone please explain to me not solve, how does that part of the equation equal -1?

- Dec 16th 2010, 03:07 PMdwsmith
This equals on my calculator.

- Dec 16th 2010, 03:19 PMPlato
Now that makes more sense.

If then .

Can you solve that? - Dec 16th 2010, 03:28 PMHELPHELPHELP
how would i find b?

- Dec 16th 2010, 03:45 PMHELPHELPHELP
- Dec 16th 2010, 04:22 PMdwsmith

How would you solve for b? - Dec 16th 2010, 04:33 PMHELPHELPHELP
k

- Dec 16th 2010, 04:39 PMHELPHELPHELP
so now do i use log 1/2+radical 5 to solve for f(-2)?

- Dec 16th 2010, 04:40 PMHELPHELPHELP
Such as log#(-2+radical5)?

#= 1/2+radical 5 - Dec 16th 2010, 04:41 PMdwsmith
- Dec 16th 2010, 04:47 PMHELPHELPHELP
ok i got that, but how do you find the exponent of a radical?

- Dec 16th 2010, 04:48 PMdwsmith