Even or Odd Minefield HARD MODE

Random Science or Minefield Quiz

Can you name the answers being even or odd?

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QuestionEven or Odd
pi² / [(k = 1 SUM ∞): 1 / k²]
4 * 5 (mod 8)
| {1, 3, 4} - {3, 4, 5, 8, 9} |
(-∞ INT ∞): exp(-x²) / √pi dx
-exp(pi * i)
cos(arcsin(3/5)) * 5
√(2 + √(2 + √(2 + √(2 + ... ))))
QuestionEven or Odd
(k = 0 SUM ∞): (1/2)^k
[1, 2, 3] ● [2, 4, 3]
0!
(5 Choose 3)
(k = 1 SUM ∞): 2.2 / (1.10)^k
1001 (base 3)
d/dx [ x ]

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