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Mathematics Question on Matrices

If A=[k/200 01/30 00m;/4]A = \begin{bmatrix}k/2&0&0\\\ 0&1/3&0\\\ 0&0&m;/4\end{bmatrix} and A−1=[1/200 01/30 001/4]A^{-1} = \begin{bmatrix}1/2&0&0\\\ 0&1/3&0\\\ 0&0&1/4\end{bmatrix} then k+l+m=k + l + m =

A

1

B

9

C

14

D

29

Answer

29

Explanation

Solution

Answer (d) 29