alleryWho introduced the use of x, y, z for unknowns and a, b, c for known quantities?
ARené Descartes
BLeonhard Euler
CGottfried Leibniz
DIsaac Newton
Answer & Solution
Correct answer: A. René Descartes
1. Descartes introduced the modern notation for variables and equations.
2. He used x, y, z for unknown quantities.
3. He used a, b, c for known ones, the constants.
_Source: Wikipedia, Mathematical notation, Modern notation_
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