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2002 Winter Diet - HSN forum

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2002 Winter Diet


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#1 Blind

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Posted 19 May 2005 - 07:44 PM

I am stuck on this question, can anyone shed any light upon it before the exam tomorrow?


Thanks

#2 Ally

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Posted 19 May 2005 - 07:50 PM

logap=cos2x
logar=sin2x

Using log rules:

asin2x = r
acos2x = p

Multiplying together:

acos2x. asin2x = pr
acos2x + sin2x = pr
a1 = pr

Note: cos2x + sin2x = 1



#3 Mr H

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Posted 19 May 2005 - 07:59 PM

logap=cos2x

logar=sin2x

Using y=logax <=> x=ay:

p=acos2x and r=asin2x

So pr=(acos2x) x (asin2x)

Using laws of multiplying indices:

pr=a(cos2x + sin2x)

pr=a1

pr=a




H tends 2 infinity

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Never argue with an idiot. They drag you down to their level then beat you with experience.


#4 Mr H

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Posted 19 May 2005 - 08:00 PM

GAZUMPED!!!

Shouldn't have gone for a drink mid-post!
(Did get to practice sub and superscripts though!)

H tends 2 infinity

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Never argue with an idiot. They drag you down to their level then beat you with experience.


#5 Blind

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Posted 19 May 2005 - 09:27 PM

Cheers.





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