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

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Eeyoremember
18 posts

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

https://www.angelfire.com/pro/circlecursor/Maths.tiff

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.


CantusCantusSILVER Member
Tantamount to fatuity
15,966 posts
Location: Down the road, United Kingdom


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

Meh


spritiespritieSILVER Member
Pooh-Bah
2,014 posts
Location: Galveston, TX, USA


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

Bendymember
750 posts
Location: Adelaide, SA, Australia


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 1/3
Weeeeeeeeee!

Courage is the man who can stop after only one peanut


Eeyoremember
18 posts

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.


CantusCantusSILVER Member
Tantamount to fatuity
15,966 posts
Location: Down the road, United Kingdom


Posted:
Hey look, Bendy is still alive!

Meh


Bendymember
750 posts
Location: Adelaide, SA, Australia


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


CantusCantusSILVER Member
Tantamount to fatuity
15,966 posts
Location: Down the road, United Kingdom


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...

Meh


Fluffy poimember
38 posts
Location: Bradford,England


Posted:
hey eeyore hows it going

right im off to play with my ball of pink fluff


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