Prove that the total number of selectionsthat can be made out of the letters "DADDY DID A DEADLY DEED" is 1919.
does anyone have the solution to this??
-thank you
Please tell us what is meant by a selection?
POST SCRIPT:
I made a guess as to what this question means.
If one expands
we get a polynomial of degree 19.
Each coefficient in the expansion tell the number of possible selections.
For example: the term in the expansion tells us that there are 191 ways to select nine items from that list.
If we sum all the coefficients we get .
But that includes the empty selection.
Remove it and there is