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You have a frame that holds three pictures. You pulled out your favorite five photos. How many sets of three are there? Make a list of all the possible combinations using the numbers 1 - 5 to represent the photos.

 Feb 18, 2020
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We have   C(5,3)   = 10   possible sets

 

These are

 

(1, 2, 3)     (2, 3, 4)   (3, 4, 5)

(1, 2, 4)     (2, 3, 5)

(1, 2, 5)     (2, 4, 5)

(1, 3, 4)

(1, 3, 5)

(1, 4, 5)

 

 

cool cool cool

 Feb 18, 2020

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