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#1 2014-12-19 03:24:21

BonaviaFx
Member
Registered: 2014-12-15
Posts: 11

Logarithm Problem

If log (base y) x = a and log (base z) x = b where x ≠ 1 , express the following in terms of a and b

a) log (base y) yz

b) log (base x) y/z

If y + z =1 show that 1/a = log (base x) 1-x^1/b

I found this hard, if question is unclear and can take a picture of it.

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#2 2014-12-19 05:15:39

PatternMan
Member
Registered: 2014-03-08
Posts: 199

Re: Logarithm Problem

Take a picture of the question.


"School conditions you to reject your own judgement and experiences. The facts are in the textbook. Memorize and follow the rules. What they don't tell you is the people that discovered the facts and wrote the textbooks are people like you and me."

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#3 2014-12-19 05:39:23

BonaviaFx
Member
Registered: 2014-12-15
Posts: 11

Re: Logarithm Problem

Here is the link to the picture smile http://prntscr.com/5in3ie

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#4 2014-12-19 07:09:41

PatternMan
Member
Registered: 2014-03-08
Posts: 199

Re: Logarithm Problem

FluxBB bbcode test I'm a noob too so anyone correct me if I'm wrong.

Does this help you?

Last edited by PatternMan (2014-12-19 07:13:35)


"School conditions you to reject your own judgement and experiences. The facts are in the textbook. Memorize and follow the rules. What they don't tell you is the people that discovered the facts and wrote the textbooks are people like you and me."

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#5 2014-12-19 21:35:14

Bob
Administrator
Registered: 2010-06-20
Posts: 10,053

Re: Logarithm Problem

hi BonaviaFx

I find it helps to switch log base like this

That should help with the first part and a similar trick will help with the others.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#6 2014-12-21 07:25:46

BonaviaFx
Member
Registered: 2014-12-15
Posts: 11

Re: Logarithm Problem

Thanks all! smile

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