If n, r are two positive integers such that 1 \leq r< n, then { }^n {\P}_{ {\r}+1}+r^2{ }^{n-1} {\P}_{ {\r}-1}+(r+1)^{n-1} {\P}_{ {\r}}+r^{n-1} {\P}_{ {\r}-1}= [TG EAPCET 13 May 2023 Shift 1]

TS EAMCET Engineering 13 May 2023 Shift 1 Solved Paper

Section: Mathematics

Question : 18 of 160

Marks: +1, -0

If n,r are two positive integers such that 1≤r<n, then ‌nPr+1+r2‌n−1Pr−1+(r+1)n−1Pr+rn−1Pr−1=

[TG EAPCET 13 May 2023 Shift 1]

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