Q66.If n = mC2 , then the value of nC2 is given by JEE Main 2012 (19 May Online) JEE Main Previous Year Paper (1) 3 (m+1C4) (2) mโ1C4 (3) m+1C4 (4) 2 (m+2C4)
What This Question Tests
This question tests the understanding of combinations and algebraic manipulation of binomial coefficients, specifically substituting one combination expression into another.
Concepts Tested
Formulas Used
nCr = n! / (r! * (n-r)!)
mC2 = m(m-1)/2
nC2 = n(n-1)/2
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๐ Question Details
- Chapter
- Permutation & Combination
- Topic
- Combinations
- Year
- 2012
- Shift
- 19 May Online
- Q Number
- Q66
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 7: Permutations and Combinations
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