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#1 2009-03-01 04:10:35

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,462

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 2009-04-15 18:34:38

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,776

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 (2009-04-15 18:35:32)


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#3 2009-05-30 01:48:09

nurshodiq
Member
Registered: 2009-03-29
Posts: 12

Re: Logarithms

this is my answer for number
#3.




#4.











(i)+(ii)+(iii)

Last edited by nurshodiq (2009-05-30 02:23:15)

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#4 2009-05-31 21:02:23

Fruityloop
Member
Registered: 2009-05-18
Posts: 120

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 = 1:)

Last edited by Fruityloop (2009-05-31 21:11:06)


The eclipses from Algol (an eclipsing binary star) come further apart in time when the Earth is moving away from Algol and closer together in time when the Earth is moving towards Algol, thereby proving that the speed of light is variable and that Einstein's Special Theory of Relativity is wrong.

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#5 2009-05-31 21:52:44

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,776

Re: Logarithms

#7

Take

and

Last edited by bobbym (2009-05-31 22:09:18)


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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