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Ts Eamcet

Matrices And Determinants

TS EAMCET 2020 (Online) 10th September Morning Shift

MCQ+1 / -02020

If $A, B$ are two non singular matrices of order $3,|B|=k$, a positive integer, then match the items of list-I with the items of list-II.




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\(
\text { List-I }
\)
\(
\text { List-II }
\)
A. $\quad\left|k^{-1} A^{-1}\right|$ I. \(
B A^k+A^k B
\)
B. $\left|\operatorname{Adj}\left(A^{-1}\right)\right|$ II. \(
\frac{B \operatorname{Adj}(B)}{|B|}
\)
C. $B A B^{-1}=I, \Rightarrow B A^k B^{-1}=$ III. \(
\frac{1}{|B|^3|A|}
\)
D. $\quad \operatorname{Adj}\left(\operatorname{Adj}\left(A^{-1}\right)\right)=$ IV. \(
\frac{1}{|A|}\left(A^{-1}\right)
\)
V. \(
\frac{1}{|A|^2}
\)

\(\text { The correct match is }\)

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