Shout here for any help on Further Maths modules…
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Further Maths6 comments to Further Maths |
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Copyright © 2010 The Sydenham High School Mathematics Department Blog - All Rights Reserved |
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Further MathsShout here for any help on Further Maths modules… 6 comments to Further Maths |
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Copyright © 2010 The Sydenham High School Mathematics Department Blog - All Rights Reserved |
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Hello!
I was just wondering whether you could help me with some of my (Mr Williams – so Series) Further maths.
The question is:
Evaluate:
20
∑ (1/r(r+1))
r=1
It’s the 1/ that’s throwing me off.
Sorry that I can’t show this in any better layout -I’ve done the best I can.
Thanks!
Grace.
Hi Grace,
You need to partial fraction it first, then it turns into a method of differences one.
Have you done partial fractions? Can’t remember which core unit it’s in. If you haven’t, then leave that question out and tell Mr Williams not to be so horrid to you!!
Fancy a cuppa?
JT
He did set it as a ‘challenge’ one, and I can’t reember doing partial fractions – so I guess that’s why.
ooh, thanks for the offer but i’m off out right this minute and so I have no time!
Thanks for your help, See you tomorrow!
Grace.
Hi Grace,
Just checked the spec and partial fractions is C4. Think he owes you extra biscuits
Hiya Mrs Tibble,
I’m slightly confused/thrown by the surdes in question 3a) on your homework!
Could you please help me?
Natania
Hi Natania,
You had me confused then lol! Trying to remember where the D1 questions had surds!!!
Match the matrix with the general rotation matrix with cos and sin in it, and work out whhich angle works. You’ll need to remember All Stations To Catford and cos45 = sin45 = 1 over root 2.
JT