A binary operation * on the set of rational numbers is defined as \(x \ast
MATHEMATICS
JAMB 2006
A binary operation * on the set of rational numbers is defined as \(x \ast y = \frac{x^2 - y^2}{2xy}\). Find \(-5 \ast 3\)
- A. \(\frac{-8}{15}\)
- B. \(\frac{8}{15}\)
- C. \(\frac{17}{15}\)
- D. \(\frac{-17}{15}\)
Correct Answer: A. \(\frac{-8}{15}\)
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