If A=\left[\begin{array}{cc}2 & -3 \ 5 & -7]\end{array}, then A+A^{-1}=

Correct Answer is : [−500−5]

\left[\begin{array}{cc}1 & 0 \ 0 & 1]\end{array}

\left[\begin{array}{cc}-5 & 0 \ 0 & -5]\end{array}

\left[\begin{array}{cc}5 & 0 \ 0 & 5]\end{array}

\left[\begin{array}{cc}4 & 0 \ 0 & -5]\end{array}

COMEDK Exam 2017 Solved Paper

Question : 170 of 180

Marks: +1, -0

If A=[

2	−3
5	−7

], then A+A−1=

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−5	0
0	−5

4	0
0	−5

−7	3
−5	2

−7	3
−5	2