Tính (1−1/3).(1−1/9).(1−1/16)...(1−1/1000)

\(\left(1-\frac{1}{3}\right).\left(1-\frac{1}{9}\right).\left(1-\frac{1}{16}\right)...\left(1-\frac{1}{1000}\right)\)

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