Question

Given the matrices A and B shown below, find – į A - B.A = [6 4] B = (-8 -11]

Answer 1

`C=-(A)/(2)-B`
`C=-(1)/(2)\cdot\mleft\lbrace6\text{ 4}\mright\rbrace-\mleft\lbrace-8\text{ -11}\mright\rbrace`
`C=\mleft\lbrace-3\text{ -2}\mright\rbrace-\mleft\lbrace-8\text{ -11}\mright\rbrace`
`C=\mleft\lbrace-3+8\text{ -2+11}\mright\rbrace`
`C=\mleft\lbrace5\text{ 9}\mright\rbrace`