ZY's answer to Mig's Junior College 1 H1 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
ZY
Zy's answer
11 answers (A Helpful Person)
1st
Hi, your method is correct. In my workings, i factorised -2 out so that normal vector is positive (leaving it as -8,-6,-12 is not wrong either).
Mig
Mig
4 years ago
Wow thanks!