Leaving Certificate
Ordinary Level
2019 P1 Q2
Question
Question
![](https://www.google.com/images/icons/product/drive-32.png)
Marking Scheme
Marking Scheme
![](https://www.google.com/images/icons/product/drive-32.png)
#Complex Numbers #Argand Diagram #Conjugate #Modulus #Show that z1 is a solution
First 15 marks were easy (part a). Part b was a small bit more challenging as it tested your understanding of roots.
Could have solved using the -b formula if you didn't fully understand the concept of roots!