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Question

Question: If A = \(\begin{bmatrix} 2 & 3 & 4 \\ 5 & - 3 & 8 \\ 9 & 2 & 16 \end{bmatrix}\), then trace of A is,...

If A = [2345389216]\begin{bmatrix} 2 & 3 & 4 \\ 5 & - 3 & 8 \\ 9 & 2 & 16 \end{bmatrix}, then trace of A is,

A

17

B

25

C

8

D

15

Answer

15

Explanation

Solution

[sum of leading diagonal elements is called Trace of matrix] 2+(3)+16=152 + ( - 3) + 16 = 15