if A = \(\left[\matrix{2&-3\\4&1}\right]\) then what is the value of A+A' ?
Answer & explanation
Correct answer: option 1
A' = \(\left[\matrix{2&4\\-3&1}\right]\)
A + A' = \(\left[\matrix{2&-3\\4&1}\right]\) + \(\left[\matrix{2&4\\-3&1}\right]\)
A + A' = \(\left[\matrix{2+2&-3+4\\4+(-3)&1+1}\right]\)
A + A' = \(\left[\matrix{4&1\\1&2}\right]\)