Jovita Lim Si Yi's answer to Chew's Junior College 1 H2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jovita Lim Si Yi
Jovita Lim Si Yi's answer
10 answers (Tutor Details)
1st
Since question didnt ask for exact value, can just use GC to calculate