Area of Segment question (1 Viewer)

[lyounamu]

Is it just me that the exam question here looks incomplete?

http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2006exams/pdf_doc/maths_ext1_06.pdf

Have a look at question 7 (a).

 

[Pwnage101]

i think there should be an 'n' after 'si' and before 'theta'