The trace of the matrix 
is
As the trace of a matrix is the sum of on – diagonal elements,
So, 1 + 7 + 9 = 17
Trace = 17
Option (A) is the answer.
1
The trace of the matrix is
As the trace of a matrix is the sum of on – diagonal elements,
So, 1 + 7 + 9 = 17
Trace = 17
Option (A) is the answer.