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(3/4)^100 - (1 + (sum from i=1 to 100 of ((-1)^i * (100 choose i) * (1/2)^(2i))))
(3/4)^100 - (1 + (sum from i=1 to 100 of ((-1)^i * (100 choose i) * (1/2)^(2i))))
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