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**Logarithms**

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**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 13,521

1. Find the value of

2. Find the value of x if

3. What is the value of

4. Show that

.

5. Show that xyz = 1 if

6. Show that

.

7. Show that

8. Show that xyz+1 = 2yz if

Character is who you are when no one is looking.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,568

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.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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

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

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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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,568

#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.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**Logarithms**