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Matrices and De...

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  • Question 1
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  • Question 2
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  • Question 3
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    Let M and N are two 3 × 3 non - singular skew-symmetric matrices such that MN = NM. If PT denotes the transpose of P, then M2N2 (MT N)-1 (MN-1)T is equal to

  • Question 4
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    If χ is any matrix of order n × p (n and p are integers) and I is an identity matrix of order n × n, then the matrix M = I - χ (χ' χ)-1 χ' is
    I. idempotent matrix. II. Mχ = 0

  • Question 5
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    If A3×3 and |A|= 6, then |2adj A| is equal to

  • Question 6
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    If A is 2 × 2 matrix and |A| = 2, then the matrix represented by |A (adj A)| is equal to

  • Question 7
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    If A is non - singular matrix of order 3, then adj (adj A) is equal to

  • Question 8
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    Which one of the following is correct always for any two non - singular matrices A and B of same order ?

  • Question 9
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  • Question 10
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