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If .^(n+2)C8:^(n-2)P4:: 57 : 16 , find ...

If `.^(n+2)C_8:^(n-2)P_4:: 57 : 16 ,` find `n`

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If ^n+2C_8:^(n-2)P_4: 57 : 16 , find ndot

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