Prove by combinatorial argument that.n+1Cr=nCr+nCr−1. View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar ...
Class 12 MATHS Prove that `.^(n)C_(r )+.^(n-1)C_(r )+...Prove that .nCr+.n−1Cr+..+.rCr=.n+1Cr+1 Video Solution free crash course Study and Revise for your exams Unlock now Text SolutionVerified by Experts .rCr+.r+1Cr+.r+2Cr+..+.n−1Cr+.nCr .r+1Cr+1+....
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For nCr + 2nCr−1 + nCr−2 = A(a)n+1Cr−1 B(b)n+2Cr+1 C(c)n+2Cr D(d)n+2CrSubmit Prove that 2n∑r=0r.(2nCr)2=2.4n−1C2n−1. View Solution Prove that : nCr+1nCr=n−rr+1 View Solution Find the sum n∑r=1r2nCrnCr−1. View Solution .nCr+2.nCr...
nCr+4nCr−1+6nCr−2+4nCr−3+nCr−4=n+4CrSolution in Malayalam Video Solution Struggling with Permutations An... ? Get free crash course | ShareSave Answer Step by step video & image solution for Prove that ""^nC_r+4^nC_(r-1)+6^(n)C_(r-2)+4^nC_(r-3)+^nC_(r-...
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Find the sumn∑r=0(−1)r⋅nCrr+3Cr View Solution n∑r=2(5r−3)Cr= View Solution n∑r=1(r+1)(r+2).n+3Cr= View Solution Prove thats∑r=0n∑s=1^nCnsCr=3n−1. View Solution Prove thatn∑r=03rnCr=4n. View Solution ...
Similar Questions .nCr+2.nCr−1+.nCr−2= View Solution Prove that .nCr+.n−1Cr+..+.rCr=.n+1Cr+1 View Solution Knowledge Check For nCr + 2nCr−1 + nCr−2 = A(a)n+1Cr−1 B(b)n+2Cr+1 C(c)n+2Cr D(d)n+2CrSubmitnCr...