Advanced Higher Maths 2012-2013 : Discussion and Help Thread

Original post by Asklepios

|z-1| = |z +5| [br](x-1)^2 +y^2 = (x+5)^2 + y^2 [br]x^2 - 2x +1 = x^2 + 10 x + 25 [br]12x = -24[br]x = -2

are you looking a 100% mate?

Reply 1982

847495606958

Original post by Shengis14

For question ten (b) - Did anyone else say the circles intersected at x=2 ?

There are no circles in (b), it's a perpendicular bisector of the points, i.e. a straight line.

For (a) there was just one circle.

Reply 1983

Direct15

2

Love how people in other schools know all the names of the rules and we just say things like the thing instead of notation

Reply 1984

Shengis14

Original post by 847495606958

There are no circles in (b), it's a perpendicular bisector of the points, i.e. a straight line.

For (a) there was just one circle.

Can't even remember if I said + or - 2, and surely I'll just lose the last mark for saying it's a circle?

Reply 1985

Shengis14

Original post by I am Ace

are you looking a 100% mate?

If it makes a difference, I got that too (though I might have said +2, cant remember)

Reply 1986

Asklepios

19

Original post by I am Ace

are you looking a 100% mate?

Yes

Reply 1987

Original post by Shengis14

If it makes a difference, I got that too (though I might have said +2, cant remember)

I meant has he got everything right

Reply 1988

847495606958

Original post by Asklepios

Yes

Congrats, I think realistically I lost two or three marks.

How'd you not end up getting a Cambridge offer anyway, you seem pretty capable.

Reply 1989

hollieeilloh

2

Original post by Asklepios

Yes

Ahhh that's great to hear! Big congratulations! :biggrin:

Reply 1990

Reece:)

Original post by I am Ace

I meant has he got everything right

I think I've 100%'d too, from our answer scene so far anyway!

Posted from TSR Mobile

Reply 1991

Original post by Reece:)

I think I've 100%'d too, from our answer scene so far anyway!

Posted from TSR Mobile

Of course you have :wink:

I'm actually quite annoyed that I haven't - pathetic as that sounds.

Ran out of time for the proof by induction and last 3 marks of the last question.

The only one I got legit wrong was the second order diff. which if I hadn't made a mistake with the ammended PI I'd have got - again if I wasn't running low on time.

I really did take it slow though, like really, really slow lmao

Reply 1992

hollieeilloh

2

Think I've got about 69 - 73...
Probably gonna be a B though, I'm guessing I'm marking generously. :tongue:

Reply 1993

Reece:)

Original post by I am Ace

Of course you have :wink:

I'm actually quite annoyed that I haven't - pathetic as that sounds.

Ran out of time for the proof by induction and last 3 marks of the last question.

The only one I got legit wrong was the second order diff. which if I hadn't made a mistake with the ammended PI I'd have got - again if I wasn't running low on time.

I really did take it slow though, like really, really slow lmao

Yeah, you've not done badly though so don't kick yourself about it! That PI is a tricky question, was surprised to see it!

Yeah you must have taken it really slow :tongue:

I was done when the highers finished paper 1, was such a long afternoon :frown:

Posted from TSR Mobile

Reply 1994

Original post by Reece:)

Yeah, you've not done badly though so don't kick yourself about it! That PI is a tricky question, was surprised to see it!

Yeah you must have taken it really slow :tongue:

I was done when the highers finished paper 1, was such a long afternoon :frown:

Posted from TSR Mobile

I just tried to redo it and the amended version still cancelled out to zero.
Can you post up how to get the PI?

I first tried y=pe^3x
then y= xpe^3x

both of those result in cancellations to 0

Reply 1995

Hype en Ecosse

20

I'm really glad that it seems to have gone so well for a lot of you!

Original post by I am Ace

Of course you have :wink:

I'm actually quite annoyed that I haven't - pathetic as that sounds.

Ran out of time for the proof by induction and last 3 marks of the last question.

The only one I got legit wrong was the second order diff. which if I hadn't made a mistake with the ammended PI I'd have got - again if I wasn't running low on time.

I really did take it slow though, like really, really slow lmao

You think that's bad? I couldn't tell a left from a right lung in an anatomy spot test today. Choked so hard.

Reply 1996

TheFOMaster

Original post by I am Ace

Of course you have :wink:

I'm actually quite annoyed that I haven't - pathetic as that sounds.

Ran out of time for the proof by induction and last 3 marks of the last question.

The only one I got legit wrong was the second order diff. which if I hadn't made a mistake with the ammended PI I'd have got - again if I wasn't running low on time.

I really did take it slow though, like really, really slow lmao

I'm the same tbh, I know I was capable, don't believe the stupid arithmetic errors and stuff that I made, and the Integration by parts... Its embarrasing to differentiate instead of integrate at AH level tbh

Reply 1997

TheFOMaster

Original post by I am Ace

I just tried to redo it and the amended version still cancelled out to zero.
Can you post up how to get the PI?

I first tried y=pe^3x
then y= xpe^3x

both of those result in cancellations to 0

y = x^2pe^3x

Reply 1998