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Monday 14 Jan 2013 - CORE MATHEMATICS ( Edexcel) OFFICIAL THREAD FOR DISCUSSIONS

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Do u think Solomon papers are harder or easier than elmwood papers?

my teacher/s have told me that the Elmwood Press papers are harder than Solomon Press!! but to be honest they are both of the same level to me.

(edited 11 years ago)

Reply 21

Tee Logan x

Could someone please help me with this question :smile:

Complete the square for :
2x^2 - 10x

All help appreciated.Thanks

Reply 22

Zahra00

Original post by Tee Logan x

Could someone please help me with this question :smile:

Complete the square for :
2x^2 - 10x

All help appreciated.Thanks

2x(x-5)

Posted from TSR Mobile

Reply 23

TheGoldenRatio

Original post by Tee Logan x

Could someone please help me with this question :smile:

Complete the square for :
2x^2 - 10x

All help appreciated.Thanks

i have attached a file with the model working out

Completing The Square.pdf56.7KB

Reply 24

TheGoldenRatio

Original post by Zahra00

2x(x-5)

Posted from TSR Mobile

you've factorized the equation

Reply 25

letsbehonest

Guys I just got 66 in the Jan 2012 paper, I want to be on a secure 70. Any tips?

Reply 26

Tee Logan x

Original post by TheGoldenRatio

i have attached a file with the model working out

Aw thank you :smile:

i love your signature at the end by the way :tongue:

Reply 27

nmanvi

Ive prepared for this exam for so long and im certain ill do well :biggrin:

.
The best practise ill recommend is A level maths solomon press papers, I did all of them so now all the past papers look completely easy to me now! (got 74/75 for my c1 mock XD)

(edited 11 years ago)

Reply 28

omnom

can someone explain how to do this. i got Sn=n/2*[a+l]
i know a = 27,l=67, but whats n and how do you get n. Screen Shot 2012-12-29 at 18.03.46.png

thanks

Reply 29

TheGoldenRatio

Original post by bobsmith657

Has anyone got the mark schemes for the elmwood papers c1? Thanks

they are quite difficult to find!!

Reply 30

TheGoldenRatio

Original post by letsbehonest

Guys I just got 66 in the Jan 2012 paper, I want to be on a secure 70. Any tips?

practice practice practice also spend time on question you are making mistakes on

Reply 31

TheGoldenRatio

Original post by Tee Logan x

Aw thank you :smile:

i love your signature at the end by the way :tongue:

Reply 32

omnom

Original post by omnom

can someone explain how to do this. i got Sn=n/2*[a+l]
i know a = 27,l=67, but whats n and how do you get n. Screen Shot 2012-12-29 at 18.03.46.png

thanks

can someone please help me?

Reply 33

TheGoldenRatio

Original post by omnom

can someone explain how to do this. i got Sn=n/2*[a+l]
i know a = 27,l=67, but whats n and how do you get n. Screen Shot 2012-12-29 at 18.03.46.png

thanks

i have attached a model answer.

Sn question.pdf45.4KB

Reply 34

omnom

Original post by TheGoldenRatio

i have attached a model answer.

thanks a lot it makes sense now.

Reply 35

TheGoldenRatio

Original post by omnom

thanks a lot it makes sense now.

no problem here to help :biggrin:

Reply 36

Me123456789

What marks are you getting in the past papers and the solomon papers?

This was posted from The Student Room's Android App on my GT-S5830

Reply 37

Zahra00

I thought there were just two equations:

Un = a + (n - 1)d

Sn = n/2(2a + (n - 1)d)

??

Posted from TSR Mobile

Reply 38

MashB

Original post by Zahra00

I thought there were just two equations:

Un = a + (n - 1)d

Sn = n/2(2a + (n - 1)d)

??

Posted from TSR Mobile

The second equation is the same as Sn=n/2(a+l) which both give you the sum of an arithmetic sequence. That greek letter 'E' sign is asking you to dothe same, where the top number is the total number of terms in the sequence with the bottom number saying what you what substitute in the expression for the first term.

This was posted from The Student Room's iPhone/iPad App

Reply 39

TheGoldenRatio

Original post by Zahra00

I thought there were just two equations:

Un = a + (n - 1)d

Sn = n/2(2a + (n - 1)d)

??

Posted from TSR Mobile

There are 3 the two you said and the third is Sn=n/2(a+L) where L is the last term and L= a+(n-1)d replacing L into the 3rd equation give you the 2nd one.