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WJEC C1 13th May 2013

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Reply 60
Original post by fil.sissay
How early did u guys start independent revision for all your exams?


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I wrote up notes a month or so ago, then apart from hw i've only seriously started doing past papers in the last couple of weeks...

Yay s1 friends :tongue: m1 looks way too scary already - there's a reason i didn't take physics :redface:
Reply 61
Original post by Isobelle
I wrote up notes a month or so ago, then apart from hw i've only seriously started doing past papers in the last couple of weeks...

Yay s1 friends :tongue: m1 looks way too scary already - there's a reason i didn't take physics :redface:


I don't think m1 will be way harder than s1. And yh I heard there's some physics math in m1.


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Reply 62
What is the pth term of the geometric series C2? Jan 2013 q.5. :smile:


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Reply 63
Reply 64
Original post by Shuhanis


I don't really get how you work it out. :/


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Reply 65
By dividing the p+2 term with pth term

You should get r

Then use that to get the p+3 and p+4
term..
If u get me?:L


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Reply 66
Original post by Shuhanis
By dividing the p+2 term with pth term

You should get r

Then use that to get the p+3 and p+4
term..
If u get me?:L


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I though the pth term of GP is ar^p-1

Say if p is 4th.

The answer should be ar^4-1 which is ar^3. And the 4th term is ar^3 in the GP.

So how come you have the pth term to be ar^p.
:/


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Reply 67
Ill look at te question properly and get back to you :smile:


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Reply 68
Original post by Shuhanis
Ill look at te question properly and get back to you :smile:


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Ok. :smile:.


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Reply 69
Original post by fil.sissay
I don't really get how you work it out. :/


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Type in the date of the paper and wjec into youtube....It explains there :smile:
Reply 70
Original post by emzlynn
Type in the date of the paper and wjec into youtube....It explains there :smile:


Ok thanks


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Reply 71
Original post by emzlynn
Type in the date of the paper and wjec into youtube....It explains there :smile:


I only got results for jan 12 and June 12 only. I can't find the jan 13. :frown:


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Reply 72
How/where did u get the results for jan&may12?


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Reply 73
Original post by Shuhanis
How/where did u get the results for jan&may12?


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From YouTube. But I can't find the pth term one for jan 13.


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Reply 74
In 24hrs ... Well be doing the may14 paper :O
MAD!!
The time has come too soon


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Reply 75
Reply 76
Original post by fil.sissay
From YouTube. But I can't find the pth term one for jan 13.


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What did you type in?
Reply 77
Original post by emzlynn
What did you type in?


I typed 'c2 Gce wjec solutions jan 2013. '


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Reply 78
Original post by fil.sissay
I typed 'c2 Gce wjec solutions jan 2013. '


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Sorry you are right! I Have the answer tho!!
You know that pth term and the p+1 term are next to eachother.
E.g. if p was the 2nd term then p + 1 would be the third term. Also that its a GP and
Therefore to find r you devide the terms which are next to eachother.
Then all you have to do is find r which = p+1/p = 24/16 = 1.5.
We know that the p+1 term is 24, therefor the next term (ie p+2) = 24 x1.5= 36,
then p+ 3 = 36 x 1.5 = 54 thus p+4 term = 54 x 1.5 = 81
I hope that helps!!!! Do you know what to do for 8bi) proving its a tengent.....I can find Q but I can't prove its a tangent!
Reply 79
Original post by emzlynn
Sorry you are right! I Have the answer tho!!
You know that pth term and the p+1 term are next to eachother.
E.g. if p was the 2nd term then p + 1 would be the third term. Also that its a GP and
Therefore to find r you devide the terms which are next to eachother.
Then all you have to do is find r which = p+1/p = 24/16 = 1.5.
We know that the p+1 term is 24, therefor the next term (ie p+2) = 24 x1.5= 36,
then p+ 3 = 36 x 1.5 = 54 thus p+4 term = 54 x 1.5 = 81
I hope that helps!!!! Do you know what to do for 8bi) proving its a tengent.....I can find Q but I can't prove its a tangent!


That explains well thank u very much. I misunderstood the question.
And for 8 b the line is y=2x+1
And u got the equation of the circle y=.....

What you do is you let y=2x+1 and you sub that into the eqn of circle

So y is replaced as 2x+1

Answer

X^2 + (2x+1)^2 +6x-10(2x+1)+14

Expand

5x^2 -10x +5 (divide by 5)

X^2 -2 +1

Factories

(X-1)(x-1)

X=1 there's only one point of intersection therefore tangent. Hope it helped. :smile: ill explain further if u don't get it. :smile:



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