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Find the number of ways in which 10 cond...

Find the number of ways in which 10 condidates `A_(1),A_(2),......,A_(10)` can be ranked so that `A_(1)` is always above `A_(2)`,

A

`(10!)/(2)`

B

`""^(10)C_(2)xx8!`

C

`""^(10)P_(2)`

D

`""^(10)C_(2)`

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