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Matrices and Determinants question

2016 · Shift 0 · Q29

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JEE Main
Mathematics
Matrices and Determinants
2016 · Shift 0 · Q29

Matrices and Determinants question

2016 · Shift 0 · Q29

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1

If

A = \left[ {\begin{matrix} {5a} & { - b} \\ 3 & 2 \\ \end{matrix} } \right]

and

A

adj

A=A{A^T},

then

5a+b

is equal to :

A
$4$
B
$13$
C
$-1$
D
$5$

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