a) -A-1+3BT
BT=⎝⎛400223111⎠⎞
A−1=−41⎝⎛−11004−40−128⎠⎞=⎝⎛0.25−0.2500−1103−2⎠⎞
−A−1+3BT=⎝⎛−0.250.25001−10−32⎠⎞+⎝⎛1200669333⎠⎞=⎝⎛11.750.250678305⎠⎞
Answer:
−A−1+3BT=⎝⎛11.750.250678305⎠⎞
b) B-1+(AT+A-1)
B−1+(AT+A−1)=⎝⎛0.25−0.2500−1103−2⎠⎞+(⎝⎛400223111⎠⎞+
⎝⎛0.25−0.2500−1103−2⎠⎞)=⎝⎛4.5−0.5020517−3⎠⎞
Answer:
B−1+(AT+A−1)=⎝⎛4.5−0.5020517−3⎠⎞
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