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Theorem Predictions for HL?
by EH458 Junior Cert Mathematics — 05/06/16 14

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?

De Morgen's theorem
mollymoo — 02/06/16
viva la betty
David10 — 03/06/16
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 — 03/06/16
Yes the theorem that David10 is talking 'bout I think will come up ^
Emma_5811 — 03/06/16
SryanBruen — 03/06/16
Pythagoras' theorem has been appearing frequently in my exam papers? Plus it is in the tables books.
Nadine S — 03/06/16
Would you say theorem 19 will come up? It came up in my mocks.
jenny_1000 — 03/06/16
either the circle theorem or pythagoras
MLGPRO — 04/06/16
They're all easy to learn off anyways, don't see how it could be a problem......
ec2406 — 04/06/16
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 right-angled 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 — 04/06/16
@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 — 04/06/16
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 — 05/06/16
@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 — 05/06/16
Oh sorry
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