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NDA 2022-I, If C(3n,2n)=C(3n,2n-7) then what is the value of C(n,n-5)
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#MathsVishwa
#maths ,#nda ,#previousyearquestions ,#permutationandcombination
#maths ,#nda ,#previousyearquestions ,#permutationandcombination