Edexcel C2 20th May 2015 *Official Thread*

stop trolling

OB = r
so triangles OAB and OCD are equilateral

thus shaded area = sector OBC - segment ABO - segment DOC

all the angles are pi/3, so just use the formulas for the areas of those objects

hope this helps

1: This year's C2 will definitely be a lot harder. My teacher's seen the leaked paper and it contains some C3 stuff - they thought it would make it more of a challenge but still doable because a lot of people sitting C2 this year are also doing C3.
2: Both.
3: Nope. You need to do some C3 papers too.
4: Probably around 71.5/75 this year, scaled up to account for grade inflation in as a result of some new education policies drawn up by the new government.
5: Nope. NO chance of that at all. Sorry.

Wait, how did your teacher gain access to the leaked paper lol? And by "C3 stuff", what exactly do you mean. Technically, the examiners can only test what is on the specification for C2 and not C3, so where exactly are you drawing these conclusions from...?

You can square root it, yes, but make sure you set sin theta equal to +1/3 and -1/3

In logs does ln mean log to the base 10?

It's a midpoint. So what next? If you could give me a straighforward answer please.

You can square root it, yes, but make sure you set sin theta equal to +1/3 and -1/3

Wait why can't it be -1/3. There would still be values if it was -1/3

Anyone know the date for C1 exam?

Can we get asked a question with a binomial where the power is an unknown?

Doing Solomon papers and they have several questions where the power is unknown, and you have to expand and prove it etc...

Yep, that's what I just told you...

It was on 13 th may.

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