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If nP^r = nP^r+1 and nC^r=nC^r-1, then the value of r is equal to (Amardev Singh Math Square) View |
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If ^nC r:^nC r+1=1: 2 and ^nC r+1:^nC r+2=2: 3, find the values of ' n ' and ' r '. (PW Solutions) View |
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nCr + nCr-1 = n+1Cr Proof | Class 11 | Mathematics | Permutations and Combinations|NCERT| IIT JEE| (Lectures by Shreedarshan K) View |
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Combinations | Theorem | To prove that nCr + nCr-1= n+1Cr (Hi-Q Learning) View |
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Find n and r if `.^(n)C (r):^(n)C (r+1):^(n)C (r+2)=1:2:3`. (Doubtnut) View |
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If `.^(n)C (r-1): .^(n)C (r): .^(n)C (r+1)=3:4:5`, find the values of n and r. (Doubtnut) View |
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My favorite proof of the n choose k formula! (Mu Prime Math) View |
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Nastya and funny Collection of New Stories for Kids (Like Nastya) View |
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How to Use Permutations and Combinations (Mario's Math Tutoring) View |
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Proof of Binomial Coefficients to follow Pascals Triangle (Anil Kumar) View |