Leaving Cert Higher Level Maths 2020 Paper 1 Question 7
Channel: Simple Science and Maths
Date: 2020-12-07

In question 7 from the 2020 leaving cert higher level maths we are dealing with sequences and series. It starts by introducing us to triangular numbers. We are then given the formula for a triangular number and asked to figure out if 1275 is triangular. Next it looks at consecutive triangular numbers and the proof that the sum of two consecutive triangular numbers is square. Part c takes a look a Euler's Formula and part d is our proof by induction.