Mathematics · Probability
If the probability that ax2 + 2√2 bx + c > 0, ∀ x ∈ &bold;R&bold;, where a, b, c ∈ {1, 2, 3, 4}, is mn (where m and n are coprime), then (m + n) is equal to:
- 117
- 278
- 318
- 481✓
Correct answer
81
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