๐ฒ Permutations & Combinations
nPr vs nCr counted live.
๐ฌ Apparatus on your bench
Counter
Click any apparatus to learn more.
nPr = n!/(nโr)! ยท nCr = nPr/r!
nPr vs nCr counted live.
Click any apparatus to learn more.
nPr = n!/(nโr)! ยท nCr = nPr/r!