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Objects Kept Together in Arrangements

Mathematics · Class 11

n people, 2 must be together: treat the pair as one, so (n-1)! * 2 (the pair can swap). Three together: 3! inside the block.

block + inside
together: glue as one super person
not together: all - together
complement
OBJECTS KEPT TOGETHER IN ARRANGEMENTS: n people, 2 must be together: treat the pair as one, so (n-1)! * 2 (the pair can swap). Three togeth
TOGETHER: n people, 2 must be together: treat the pair as one, so (n-1)!
WHAT — OBJECTS KEPT TOGETHER IN ARRANGEMENTS: n people, 2 must be together: treat the pair as one, so (n-1)! * 2 (the pair can swap). Three togeth
WHY — Why it matters: This rule is a separate learning unit inside restrictions in arrangements. It can be defined, applie

Right triangle — Objects Kept Together in Arrangements — original sketch for this lesson (not copied from a textbook).