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Permutations and Combinations · 2023 · 31 Jan · Shift 2

2 Mathematics questions from this JEE Main paper
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Permutations and Combinations · 2023 · 31 Jan · Shift 2

2 Mathematics questions from this JEE Main paper

  1. Q40.Let A=[aij​],aij​∈Z∩[0,4],1≤i,j≤2. The number of matrices A such that the sum of all entries is a prime number p∈(2,13) is ​.
    Mathematics · Permutations and Combinations · Numerical
  2. Q41.If 2n+1Pn−1​:2n−1Pn​=11:21, then n2+n+15 is equal to :
    Mathematics · Permutations and Combinations · Numerical