velocity
Asked by varshitchouhan8
| 8th May, 2022,
08:48: PM
Expert Answer:
Suppose k objects have been chosen out of the n dissimilar objects. Then we have to choose n−k objects from out of the two other sets.
The choices would go like 0 from the first set and (n−k) from the other, or 1 from set 1 and (n−k−1) from the other etc.
This gives n−k+1 choices.
Suppose k objects have been chosen out of the n dissimilar objects. Then we have to choose n−k objects from out of the two other sets.
The choices would go like 0 from the first set and (n−k) from the other, or 1 from set 1 and (n−k−1) from the other etc.
This gives n−k+1 choices.
Answered by Renu Varma
| 9th May, 2022,
07:50: PM
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