Question 1197177
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See the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF =https://www.algebra.com/algebra/homework/Permutations/Arranging-elements-of-sets-containing-undistinguishable-elements.lesson>Arranging elements of sets containing indistinguishable elements</A> 

in this site.


Find there many other similar &nbsp;(and different) &nbsp;solved problems, &nbsp;with full explanations on how to do it.


Learn the subject from there &nbsp;(&nbsp;!&nbsp;)