The matrix [ * 20 c 2&5& - 7 0&3& 11 0&0&9 ]is known as - Vidyadip

MCQ

The matrix $\left[ {\begin{array}{*{20}{c}}2&5&{ - 7}\\0&3&{11}\\0&0&9\end{array}} \right]$is known as

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

✓

Answer

Correct option: C.

Upper triangular matrix

c
(c) We know that if all the elements below the diagonal in the matrix are zero, then it is an upper triangular matrix.

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