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Theorem Predictions for HL?
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
Pythagoras
SryanBruen — 03/06/16
Pythagoras' theorem has been appearing frequently in my exam papers? Plus it is in the tables books.
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