Factorial and nCr Notation || Properties OF nCr

Factorial and ncr Notation and Properties ncr

Properties OF nPr and nCr

Factorial: definition and notation

Definition and notation

Problems on fundamentals Principal OF Counting || Factorial Notation and Exponent OF Prime Number

Basic OF Binomial || Factorial || nCr and questions based on nCr and Important points

Notation OF Factorial || Comittie problems || Elementary permutation & Combination

Notation OF Factorial || Comittie problems || Elementary permutation & Combination

Permutations When Objects Are All Distinct|Factorial Notation|Exercise Questions|OMR

If n and r are positive integers such that 0ltrltn then show that the roots of the quadratic equation nC_r x^2+2. ^nC_(r+1)x+^nC_(r+2)=0 are real.