TMUA 2019 Paper 2 Q3 — Worked Solution

P2·Algebra & Surds, Logic & Quantifiers·5.0Official · 2019 · Q3

divide-by-zeromust-be-truefactorising

a

b

and

c

are real numbers. Given that

ab = a c

, which of the following statements must be true?

a = 0

b = 0

c = 0

III

b = c

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