Jeffery Lim's answer to huihuibuhui's Secondary 4 A Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jeffery Lim
Jeffery Lim's answer
9 answers (A Helpful Person)
huihuibuhui
Huihuibuhui
5 years ago
Thank you so much