# Edexcel A2 C3 Mathematics 12th June 2015Watch

This discussion is closed.
3 years ago
#1361
(Original post by randlemcmurphy)
For U , this is t years after 1990, and for V it is t years after 2000, you need to alter it, other than that I have got as far as you.
well spotted
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3 years ago
#1362
If tan(x)=1/0 ie infinity, does x equal 90, 270 etc...

(I ask this as I have seen it before on an exam paper but would like further confirmation?)
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3 years ago
#1363
i got 2044 first but isn't the t s different
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3 years ago
#1364
(Original post by samb1234)
Is it 2044?

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it is
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3 years ago
#1365
(Original post by TeeEm)
it is
I really should have read it more carefully in the first place. Had some filthy equation before I realised what the value of A and B were haha.

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3 years ago
#1366
(Original post by samb1234)
I really should have read it more carefully in the first place. Had some filthy equation before I realised what the value of A and B were haha.

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3 years ago
#1367
(Original post by TeeEm)
well spotted
This is as far as I am. Have two equations in terms of p and 'altered' t which I can set equal to each other.
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3 years ago
#1368
(Original post by BlueReptiles)
this is my attempt
imgur.com/Q0OOTZp
sorry for the scrumpled back of a c4 paper haha
Wouldnt you put t as 10 in the U equation and not t+10? or would it be t-10

confused.
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3 years ago
#1369
(Original post by Gilo98)
This is as far as I am. Have two equations in terms of p and 'altered' t which I can set equal to each other.
You can work out p, read the first two lines.
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3 years ago
#1370
(Original post by samb1234)
Is it 2044?

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got 2044 too ? is that correct tee em ?
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3 years ago
#1371
(Original post by randlemcmurphy)
You can work out p, read the first two lines.
god I just misread to whole Q. Thought the modelling equation was for price after 2010. Now that I realise this is makes all workings before void
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3 years ago
#1372
(Original post by Maths degree)
got 2044 too ? is that correct tee em ?
H said yes before, so its correct!

btw did you put t-10 in equations U's t when you equated them or put it 10.
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3 years ago
#1373
Sorry I am teaching again ...
full solution at 20.30
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3 years ago
#1374
redid it while actually reading the second stamps modelling equation and got 2044
minor slip up that totally wont happen tommorow
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3 years ago
#1375
(Original post by suyoof123)
H said yes before, so its correct!

btw did you put t-10 in equations U's t when you equated them or put it 10.
put t+10 into U to match the starting year with V of 2000. then equate
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3 years ago
#1376
(Original post by suyoof123)
Only if TeeeM doesn't mind

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3 years ago
#1377
can anyone give me hardest C3 edexcel past paper please
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3 years ago
#1378
(Original post by samb1234)
Only if TeeeM doesn't mind

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Why would he mind, saves him the time to upload n stuff
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3 years ago
#1379
(Original post by Maths degree)
put t+10 into U to match the starting year with V of 2000. then equate
Thanks mate
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3 years ago
#1380

as somebody else has said when the denominator=0 there is an asymptote. So create an equation and solve for x. This value of x = beta. I've posted my solution if it helps, also is there a mark scheme for this?

(Original post by gcsestuff)
Teeeeeeeeeeeem I don't understand b of this question, how does it equal zero for a vertical asymptote ðŸ˜­ðŸ˜­Attachment 425503

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