Forums > Social Chat > Can someone help me with my maths?

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Eeyore


member


Total posts: 18
Posted:Im just a bit confused how you can do question (b)(ii) without a calculator. (the url of the question is below)

http://www.angelfire.com/pro/circlecursor/Maths.tiff
br>
I can work it out with a calculator fine but since it's meant to be for a non-calculator paper Id be a bit screwed. Any help would be appreciated.


Makes you wonder really.

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Cantus
SILVER Member since Jul 2001

Cantus

Tantamount to fatuity
Location: Down the road, United Kingdom

Total posts: 15965
Posted:Not me. Try asking NYC - he's real smart

"I'll carry this....It's harder to spill a hat" - Chellybean
"...like a rabbit caught in a lighthouse?" - Chellybean

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spritie
SILVER Member since Sep 2001

spritie

Pooh-Bah
Location: Galveston, TX, USA

Total posts: 2014
Posted:I might be able to help ya out, if I could only see the problem. My silly 'puter thinks I'm trying to view some quicktime video it doesn't like

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Bendy


member
Location: Adelaide, SA, Australia

Total posts: 750
Posted:Note: ** is for powers (eg 10**2 is 10 squared)

code:root(3)
-------
9**3/4


-> root(3) = 3**1/2

log top and bottom, so this equals:

1/2 x log3
----------
3/4 x log9

-> log9 = 2 x log3

now we have:
1/2 x log3
--------------
3/4 x 2 x log3

-> cancel the log3

we have:
1/2
-------
3/4 x 2

which is:

1/2
---
3/2

better known as 1/3Weeeeeeeeee!


Courage is the man who can stop after only one peanut

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Eeyore


member


Total posts: 18
Posted:Uh? Me um tres confused...
I think that I understand the log thing a little but Ive never encountered it before.

log25 = 2 X log5

Okay thanks for all the help.


Makes you wonder really.

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Cantus
SILVER Member since Jul 2001

Cantus

Tantamount to fatuity
Location: Down the road, United Kingdom

Total posts: 15965
Posted:Hey look, Bendy is still alive!

"I'll carry this....It's harder to spill a hat" - Chellybean
"...like a rabbit caught in a lighthouse?" - Chellybean

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Bendy


member
Location: Adelaide, SA, Australia

Total posts: 750
Posted:Ya, Cantus, me still alive - and around abouts sometimes.

Eeyore - you got that right with the 2xlog5 = log25.

Similarly a x logb = log(b**a)


Courage is the man who can stop after only one peanut

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Cantus
SILVER Member since Jul 2001

Cantus

Tantamount to fatuity
Location: Down the road, United Kingdom

Total posts: 15965
Posted:I/we're coming to OZ later this year. But I'm told we're not coming to Adelaide. Can you make it to some other major city instead Mr Kling? Cos I'd love to hook up...

"I'll carry this....It's harder to spill a hat" - Chellybean
"...like a rabbit caught in a lighthouse?" - Chellybean

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Fluffy poi


member
Location: Bradford,England

Total posts: 38
Posted:hey eeyore hows it going

right im off to play with my ball of pink fluff

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