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NOTE: IS STUDYING DISCRETE MATHEMATICS FOR COMPUTER SCIENCE ABOUT PERMUATION AND COMBINATION, AND WANT TO SEE THE WORK OF THE ANSWERS Question 5 A woman

NOTE: IS STUDYING "DISCRETE MATHEMATICS FOR COMPUTER SCIENCE" ABOUT PERMUATION AND COMBINATION, AND WANT TO SEE THE WORK OF THE ANSWERS

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Question 5 A woman has 11 close friends. Find the number of ways she can invite 5 of them to dinner where: (a) There are no restrictions. 23 (b) Two of the friends are married to each other and will not attend separately. 45 (c) Two of the friends are not speaking with each other and will not attend together. 78 Answer 1: 23 Answer 2: 45 Answer 3: 78 ed ed ed

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