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

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PhysChemTutor
Physchemtutor's answer
1551 answers (A Helpful Person)
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Needhelp
Needhelp
3 years ago
This is awesome! How you think of using A to deduce the intersection? Thanks so much! I
PhysChemTutor
PhysChemTutor
3 years ago
yeah... I believe you got studded because of C. Once you consider A, C is easier to handle.