Question

Find the valu of "M" The valu of detirminant |4 m| ,|2 7|
is 34​

Answer 1

Answer:

m = -3

Step-by-step explanation:

$\left|\begin{matrix}4&m\\2&7\end{matrix}\right|=34\\\\\Rightarrow 4\times7-2m=34\\\\\Rightarrow 2m = 28-34 = -6\\\\\Rightarrow m = -3$

Hope this helps!

Answer 2

$[4 , m ][2,7]= 34 \\ 28 - 2m = 34 \\ 2m = 28 - 34 \\ m = \frac{ - 6}{2} \\ m = ( - 3)$