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24 November, 16:37

Evaluate 7P4

Evaluate 12C5

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Answers (1)
  1. 24 November, 16:52
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    Below.

    Step-by-step explanation:

    7P4

    = 7! / (7-4) !

    = 7*6*5*4*3*2*1 / (3*2*1)

    = 7*6*5*4

    = 840.

    12C5

    = 12! / (12-5) ! 5!

    = 12*11*10*9*8*7*6*5*4*3*2*1 / (7*6*5*4*3*2*1 * 5*4*3*2*1)

    = 12*11*10*9*8 / 5*4*3*2*1

    = 792.
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