The matrix [ * 20 c 0&5& - 7 - 5 &0& 11 7& - 11 &0 ]is known as - Vidyadip

MCQ

The matrix $\left[ {\begin{array}{*{20}{c}}0&5&{ - 7}\\{ - 5}&0&{11}\\7&{ - 11}&0\end{array}} \right]$is known as

A
Upper triangular matrix
✓
Skew symmetric matrix
C
Symmetric matrix
D
Diagonal matrix

✓

Answer

Correct option: B.

Skew symmetric matrix

b
(b) The given matrix is a skew-symmetric matrix $[\because \,\,A' = - A]$
.

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