1/541
    1/541
    1/541
    1/380
    1/342
    1/356
    1/336
    1/352
    1/350
    16/432
    1/27
    1.41|421356
    0.2|09 (5-1)/2 a^2=-1 a^2≥-1 1≥a^3≥-1
    0.2|09 (5-1)/2 a^2=-1 a^2≥-1 1≥a≥0
    0.2|09 (5-1)/2 a^2=-1 a^2≥-1
    0.2|09
    11/17
    44/68
    44/68
    1/100

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