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C2 June 2011 Edexcel - Paper and Solutions in the FIRST post.

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Anyone who doesn't know what the words calculus and integration mean should just go to bed!!!

why would I do that...? when will I learn it then.. I had enough trouble doing trapezium rule and now this has come along. to think I still have to do inequalities :s

Reply 781

tiny hobbit

[QUOTE=TheDane;31717256 if using arc and sector equations etc then change the angle to radians by doing the opposite- times it by 180/pi hope it makes sense??

It doesn't because it's nonsense. Go to bed.

Reply 782

msta

Quick question

On the June 2010 paper, question 7a, how do you get to (x+5)^2 = 3(2x-13) from log3 ((x+3)^2 / (2x-13)) = 1

(edited 12 years ago)

Reply 783

mir3a

Original post by msta

Quick question

On the June 2010 paper, question 7a, how do you get to (x+5)^2 = 3(2x-13) from log3 ((x+3)^2 / (2x-13)) = 1

Note, log3^3=1.

Reply 784

xXHD-LoverXx

Original post by msta

Quick question

On the June 2010 paper, question 7a, how do you get to (x+5)^2 = 3(2x-13) from log3 ((x+3)^2 / (2x-13)) = 1

http://www.youtube.com/watch?v=_2eeg3pbQ0k

Reply 785

Andy Ftw

Original post by msta

Quick question

On the June 2010 paper, question 7a, how do you get to (x+5)^2 = 3(2x-13) from log3 ((x+3)^2 / (2x-13)) = 1

If log a B = C (where a is the base number), then a^C = B

You can apply the same here, where a = 3, and C = 1

3^1 = ((x+3)^2 / (2x-13))

3 = ((x+3)^2 / (2x-13))

Then multiply (2x-13) to both sides

3(2x-13) = (x+3)^2

(I assume the x+5 was a typo?)

Reply 786

sarian2

how do you prove geometric seq??

Reply 787

arvin_infinity

Good luck everyone..sleeping timeeee Zzzzzz

Reply 788

ViralRiver

Original post by ricky1305

why would I do that...? when will I learn it then.. I had enough trouble doing trapezium rule and now this has come along. to think I still have to do inequalities :s

Calculus means integration or differentiation.

Reply 789

zezima

Original post by sarian2

how do you prove geometric seq??

I advise you to practice that before you go bed.. i have feeling ita gona come up!

and this paper is gonna be veryyyy hard because the one in january was the easiest paper ever!

Reply 790

ViralRiver

Original post by zezima

I advise you to practice that before you go bed.. i have feeling ita gona come up!

and this paper is gonna be veryyyy hard because the one in january was the easiest paper ever!

As far as I know they always come up, it's an entire chapter of the book.

Reply 791

Kray

Original post by Whatever9999

ohh i thought he was right ,because its r^2 right ??? and 6.5 is R :confused:

not so sure

6.5 is r^2... which was my point. He added an extra ^2

Reply 792

zezima

arghhh i just cant w8 for 9:30!! mannn i want that 100% so badlyyy

Reply 793

Expendable

Original post by Masderchef

Why are people not in bed yet?

strong irony?

Reply 794

taliman

Will this paper be harder because Jan 2011 was considered easy

Reply 795

Bellissima

rrr

(edited 12 years ago)

Reply 796

Bellissima

Original post by taliman

depends whether the examiner is feeling mean or not tbh

Reply 797

intellectual1

Original post by taliman

Will this paper be harder because Jan 2011 was considered easy

Certainly so, and logarithms, trigonometry, circle geometry are sure to cause difficulties...the geometric series question in Jan11 was'nt a difficult one either...

Reply 798

taliman

Original post by intellectual1

Certainly so, and logarithms, trigonometry, circle geometry are sure to cause difficulties...the geometric series question in Jan11 was'nt a difficult one either...

I hope there are low grade boundaries for todays exam lol

Reply 799

Bellissima

Original post by intellectual1

Certainly so, and logarithms, trigonometry, circle geometry are sure to cause difficulties...the geometric series question in Jan11 was'nt a difficult one either...