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#1 2009-03-02 03:10:35

ganesh
Moderator

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Logarithms

1. Find the value of

.

2. Find the value of x if
.

3. What is the value of
?

4. Show that
if
.

5. Show that xyz = 1 if
.

6. Show that
if
.

7. Show that
.

8. Show that xyz+1 = 2yz if
.


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#2 2009-04-16 16:34:38

bobbym
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Re: Logarithms

Hi ganesh;

This is my answer to for problem 2

We can change the original problem to read:











So x = 8

Is this OK?

bobbym

Last edited by bobbym (2009-04-16 16:35:32)


In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
 

#3 2009-05-30 23:48:09

nurshodiq
Member

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Re: Logarithms

this is my answer for number
#3.






#4.










(i)+(ii)+(iii)

Last edited by nurshodiq (2009-05-31 00:23:15)

 

#4 2009-06-01 19:02:23

Fruityloop
Full Member

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Re: Logarithms

The answer to #1.



We have


We set p equal to it and take the log of both sides

log p = log (
)

log p =


log p =


log p = 0
p = 1smile

Last edited by Fruityloop (2009-06-01 19:11:06)


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#5 2009-06-01 19:52:44

bobbym
Administrator

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Re: Logarithms

#7



Take
and






Last edited by bobbym (2009-06-01 20:09:18)


In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
 

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