Higher Level Maths Proofs

This proof section contains has 34 videos on all the theorems, constructions and proofs that are on the leaving cert course. Easy to understand and easy to follow. These are a must for everyone doing higher-level maths. These are the handiest marks on the whole exam. That are vital - a must get right section.

Module 1 Complex Numbers
Unit 1 Cos3A  - Preview
Unit 2 Properties of Polar Form
Unit 3 Cos Cubed
Module 2 Financial Maths
Unit 1 Amortization
Module 3 Proof by Contradiction
Unit 1 Square Root of 2
Module 4 Proof by Induction
Unit 1 De Moivre's Theorem
Unit 2 Sum of r squared
Module 5 Constructions
Unit 1 60 Degrees
Unit 2 Bisect a Line
Unit 3 Bisect a Angle
Unit 4 Centroid
Unit 5 Orthocentre
Unit 6 Incircle
Unit 7 Circumcentre
Unit 8 Tangent to a Circle
Unit 9 Triangle Given 3 Sides
Unit 10 Triangle given 2 sides and an Angle
Unit 11 Triangle with 1 length and 2 angles
Unit 12 Divide a Line into 3
Unit 13 Perpendicular Line through Point not on line
Module 6 Theorem
Unit 1 Theorem 1
Unit 2 Theorem 2
Unit 3 Theorem 3
Module 7 Trig Proofs
Unit 1 Sin Rule
Unit 2 Cosine Rule
Unit 3 Sin sq +Cos sq =1
Unit 4 30,45, and 60
Unit 5 Cos(A-B)
Unit 6 Cos(-A)=CosA
Unit 7 Cos(A+B)
Unit 8 Cos2A
Unit 9 Sin(A-B)
Unit 10 Sin(A+B)
Unit 11 Tan(A+B)