Tham KY's answer to Derek Rolle's International Baccalaureatte Maths HL question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Tham KY
Tham Ky's answer
6052 answers (Tutor Details)
1st
...
Derek Rolle
Derek Rolle
7 years ago
Amazing, I didn't even see the multiplier!