Art of Problem Solving
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Trigonometry: Revision history

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10 January 2025

7 September 2023

4 March 2022

3 March 2022

2 March 2022

28 December 2021

21 December 2021

29 September 2021

2 July 2021

31 May 2021

30 May 2021

5 May 2021

29 December 2019

28 October 2019

8 October 2019

17 March 2017

11 September 2015

15 April 2015

19 October 2013

4 December 2012

17 June 2011

30 May 2011

7 October 2007

8 September 2006

27 June 2006

24 June 2006

23 June 2006