if `nP_r=nP_(r+1)` and `nC_r=nC_(r-1)` then value of `(n+r)` is equal to

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Find n and r If (nPr) = (nP(r+1)) and (nCr = nC(r-1)).

How to calculate combination ( nCr) in scientific calculator

If nP^r = nP^r+1 and nC^r=nC^r-1, then the value of r is equal to _________

finding nCr in scientific calculator

Combinaties | Stelling | Bewijzen dat nCr + nCr-1 = n+1Cr

Permutation vs Combination |when to use nPr vs nCr |Basic Concepts |Nishant vora sir |#jeeadvanced

यदि .^(n+1)P_(18):^(n-1)P_(16)=420:1 हो ,तो n का मान ज्ञात कीजिए । | 12 | क्रमचय एवं संचय | M...

nPr=n-1Pr+r.(n-1)Pr-1 Ex 7.2 class 11| Mathematics|Permutation