What you "must know" to achieve maximum marks.




Advice as to which questions to attempt and when.
What is the best kept secret on paper!. What questions can you safely leave out?




See our solutions to past exam questions in algebra and sequences and series (AP/GP)



'Complex numbers' See questions form 1995 to 1999.

'Solutions'
See the 2000 paper.

Ordinary Level Paper 2

Dos and Don'ts

Marking Scheme: Part (a) 10 marks, Part (b) 20 marks, Part(c) 20 marks.

 For starters.

  1. The attempt for each part of a question is 1/3 of the marks for that part of the question.

  2. One of the most popular topics examined on leaving cert Ordinary Level Maths is Trigonometry.


 

How to attack a Trigonometry question

 Before starting any question on Trigonometry 

(a) Ensure that your calculator is in degree mode, deg should be on the screen. If deg is not there, press the DRG button (Sharp) until deg appears on the screen. 

(b) Calculators work in degrees, so if the angle is given to you in degrees and minutes you must tell the calculator this by using the DMS button. It is best just to work in degrees.

Many questions are based on the right-angled triangle, and page 9 of the maths tables.

The above information was all that was needed to answer all of the following Questions (all taken from Paper 2) 1999Q5a, 1998Q5b, 1997Q5b, 1996Q5b, and 1995Q5a


 

Length of an arc Area of a sector

The following two formulae will sort out anything that can be asked in this area.

Length of an arc 

Area of a sector

 Questions based on the above formulae were asked in 1999Q5b, 1998Q5a, and 1994Q5a


 

Three Important Formulae 

(all on page 9 of the tables)

(1) Area of a Triangle =

(2) The Sine Rule

(3) The Cosine Rule

 

 



 




What you "must know" to achieve maximum marks.




Advice as to which questions to attempt and when.
What is the best kept secret on paper!. What questions can you safely leave out?




See solutions for leaving past papers in trigonometry.