PhysChemTutor's answer to Needhelp's Junior College 2 H2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
PhysChemTutor
Physchemtutor's answer
1551 answers (A Helpful Person)
1st
Needhelp
Needhelp
2 years ago
This is awesome! How you think of using A to deduce the intersection? Thanks so much! I
PhysChemTutor
PhysChemTutor
2 years ago
yeah... I believe you got studded because of C. Once you consider A, C is easier to handle.