Practice Vector Algebra - CSIR-UGC NET Offered by Unacademy

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Vector Algebra

Quick practice

Question 1 of 5

Which of the following statement is correct about the matrix $M=\left[\begin{array}{ccc} 0 & -4 & 1 \\ 4 & 0 & -5 \\ -1 & 5 & 0 \end{array}\right]$ ?

(i) Matrix is idempotent.

(ii) Matrix is symmetric.

(iii) Matrix is orthogonal.

(iv) Matrix is skew-symmetry.

A

Only (ii), (iii) and (iv)

B

Only (ii) and (iii)

C

Only (iv)

D

Only (i)