Page 95 - Fixtures
P. 95

@ @pbjïØ Üa@    @XP

                                           5    ()

  .C(5,2) = 5! = 10

                 2! × 3!

.C(5, 3) = 5! = 10

             2! × 3!

.C(5, 4) = 5! = 5

               4! ×1!

.C(5,5) = 5! = 1

              5! × 0!

                  .10 + 10 + 5 + 1 = 26

 .I   .25 − 5 − 1 = 26
.I E                        ()

         : PENCILS
       E ()

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