Explanation:
A=⎣⎢⎢⎡324−21−33−12⎦⎥⎥⎤,x=⎣⎢⎢⎡xyz⎦⎥⎥⎤,B=⎣⎢⎢⎡814⎦⎥⎥⎤
∣A∣=⎣⎢⎢⎡324−21−33−12⎦⎥⎥⎤
=3[1−3−12]−1(−2)[24−12]+3[241−3]⇒3(2−3)−2(4+4)+
8.5m questions
11.2m answers