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Let and . Determine the value of for which…
MATHEMATICS · Subjective · CBSE · Mathematics · Matrices · Matrices
Problem
Let
A
=
(
1
2
3
5
)
A=\begin{pmatrix}1 & 2\\ 3 & 5\end{pmatrix}
A
=
(
1
3
2
5
)
and
B
=
(
−
5
2
3
x
)
B=\begin{pmatrix}-5 & 2\\ 3 & x\end{pmatrix}
B
=
(
−
5
3
2
x
)
. Determine the value of
x
x
x
for which
A
B
=
I
2
AB=I_2
A
B
=
I
2
.
Related theory
Matrix Operations
Matrices
Determinants
Adjoint and inverse
Invertible matrices
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