Short · Engineering Exams
Math Shortcut: Find 𝑟 FAST! #MathShorts
17 December 2025
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See how recognizing r!=120 gives you 𝑟 immediately. A must-know trick for permutations & combinations!
#permutations #combinations #mathtricks #mathshorts
#mathtips #mathtrick #mathlesson #mathhacks
#permutationtrick #combinatorics #factorialtrick #mathtutorial
#mathvideo #learnmath #quickmath #mathformula
#rfactorrule #mathshortcut #mathtipsandtricks #mathforstudents
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