The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

Edexcel FP1 Thread - 20th May, 2016

Scroll to see replies

Original post by TheRandomGenius
How would you do part c? I have done parts a and b but can't seem to find the area - the co-ordinates of Q are (27,-18)


SKETCH! It'll be obvious once you do.
I have :biggrin: But still can't get the right answer (225) :frown:

Any help? The MA on physics and maths tutor doesn't make much sense.

Original post by Zacken
SKETCH! It'll be obvious once you do.
(edited 7 years ago)
Original post by Zacken
Not sure what the problem is... split it up, sum the parts and get an equation:

k sum 2^r = number

remember geometric series...

Yep - silly me.
Cheers
Guys i have no idea what is going on here. THis is from the Jan 2016 IAL paper, do we need to know this as i dont know what to do. I got part (a) (i) but not the rest. Please help!!!!

The quadratic equationx2 – 2x + 3 = 0 has roots Į and ȕ.Without solving the equation, (a) (i) write down the value of (Į + ȕ) and the value of Įȕ (ii) show that Į2 + ȕ2 (iii) find the value of Į3 (b) (i) show that Į4 + ȕ4 (ii) find a quadratic equation which has roots = –2 + ȕ3 = (Į2 + ȕ2)2 – 2(Į ȕ)2 (5) – ȕ) and ( ȕ3(Į3 – Į) giving your answer in the form px2 + qx + r = 0 where p, q and r are integers.
I'm a sIow writer, how Iong shouId I spend on my induction questions?
Original post by Hot&SpicyChicken
Guys i have no idea what is going on here. THis is from the Jan 2016 IAL paper, do we need to know this as i dont know what to do. I got part (a) (i) but not the rest. Please help!!!!

The quadratic equationx2 – 2x + 3 = 0 has roots Į and ȕ.Without solving the equation, (a) (i) write down the value of (Į + ȕ) and the value of Įȕ (ii) show that Į2 + ȕ2 (iii) find the value of Į3 (b) (i) show that Į4 + ȕ4 (ii) find a quadratic equation which has roots = –2 + ȕ3 = (Į2 + ȕ2)2 – 2(Į ȕ)2 (5) – ȕ) and ( ȕ3(Į3 – Į) giving your answer in the form px2 + qx + r = 0 where p, q and r are integers.


No. It's not on the UK spec.

Original post by Yunique
I'm a sIow writer, how Iong shouId I spend on my induction questions?


10 minutes max.
Zacken???

Original post by TheRandomGenius
How would you do part c? I have done parts a and b but can't seem to find the area - the co-ordinates of Q are (27,-18)
Original post by iMacJack
Yep - silly me.
Cheers


No problem, can you help that other user with this Jan 15 area of PQS question? I'm going off for a while.
Can anyone help me on how to solve sigma r=0 to r=1. Someone explained it before but i couldnt fully get it. Maybe give me some examples with n=1,2,3 etc. Thanks
He said that he couldn't do it either :frown:

Original post by Zacken
No problem, can you help that other user with this Jan 15 area of PQS question? I'm going off for a while.
Which paper is this?
Original post by iMacJack
https://gyazo.com/bb2a0cc0002c1fdf91f31d04facbb76a

Again part b... another probably simple question in which I seem stuck on.


Which paper is this?
Original post by TheRandomGenius
He said that he couldn't do it either :frown:


This

It was really difficult for an area of a triangle question...

Maybe @kingaaran will help us!
Original post by Hopstano
Which paper is this?


https://7cba9babeb0db0ff9468853e0b2d0a80708ec59c.googledrive.com/host/0B1ZiqBksUHNYZGxseFBIQkphV0k/January%202014%20(IAL)%20QP%20-%20F1%20Edexcel.pdf
Original post by iMacJack
This

It was really difficult for an area of a triangle question...

Maybe @kingaaran will help us!


What year, what question? I'll check it out...
Original post by kingaaran
What year, what question? I'll check it out...


Jan 15 IAL F1 4C
Here... - part c

Original post by kingaaran
What year, what question? I'll check it out...
paint.png43.5KB
Could someone explain 6 (ii) (a)

234.png

Attachment not found
235.png7.4KB
sum frm r=1 to 12 of 2^r = 2^1 + 2^2 + 2^3 + ...

first term is 2^1 = 2.
Original post by Chirstos Ioannou
Could someone explain 6 (ii) (a)

234.png

Attachment not found


Pull out a factor of 1/2 (or -1/2) and you should see that the remianing bit inside the bracket is rotation of angle 30 (or 60)

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you