Anyone got any predictions for what theorem is coming up for HL? My teacher has a feeling it will be Pythagoras theorem because it hasn't come up on the JC since the syllabus changed and it came up on our mock, opinions?

Эргодическая гипотеза
De Morgen's theorem

mollymoo
viva la betty

David10
I think the theorem where the angle at the center is twice the angle at the top.It has came up in 2012 and 2014 and more than likely this year

SryanBruen
Yes the theorem that David10 is talking 'bout I think will come up ^

Emma_5811
Pythagoras

SryanBruen
Pythagoras' theorem has been appearing frequently in my exam papers? Plus it is in the tables books.

Nadine S
Would you say theorem 19 will come up? It came up in my mocks.

jenny_1000
either the circle theorem or pythagoras

MLGPRO
They're all easy to learn off anyways, don't see how it could be a problem......

ec2406
Pythagoras' Theorem (Theorem 14) is most likely to come up. However I would learn the circle theorem (Theorem 19) as it has came up frequently in the past few years.
Also, remember that Theorem 14 is proved by making 2 rightangled triangles with the main one, by using trigonometric ratios for each smaller triangle is to the main one, and by finally adding these two ratios together.

ec2406
@SryanBruen actually, proving Pythagoras' Theorem has never came up in the New Project Maths papers, so I wouldn't be so certain. And it's hardly given in the log tables (nor is any other formal proof, for that matter)  otherwise everyone would just copy it straight out of them.

SryanBruen
Ec2406 I have seen the log tables and it is in it. I don't mean it as a proof, I mean it as a separate thing in a question like Trigonometry where you have to find a missing side before finding the sin, cos or tan.

ec2406
@SryanBruen that isn't what this thread is about though anyone can use the Pythagoras Theorem if it's just finding a 3rd side

SryanBruen
Oh sorry

Me
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