A binary operation Δ is defined by a Δ b = a + 3b +
MATHEMATICS
JAMB 2019
A binary operation Δ is defined by a Δ b = a + 3b + 2. Find (3 Δ 2) Δ 5
- A. 35
- B. 59
- C. 28
- D. 87
Correct Answer: C. 28
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