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Matrices and Determinants question

2023 · 24 Jan · Shift 2 · Q27

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JEE Main
Mathematics
Matrices and Determinants
2023 · 24 Jan · Shift 2 · Q27

Matrices and Determinants question

2023 · 24 Jan · Shift 2 · Q27

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1

If the system of equations

x+2y+3z=34x+3y-4z=48x+4y-\lambda z=9+\mu

has infinitely many solutions, then the ordered pair (

\lambda,\mu

) is equal to :

A
$\left( {{{72} \over 5},{{21} \over 5}} \right)$
B
$\left( { - {{72} \over 5}, - {{21} \over 5}} \right)$
C
$\left( { - {{72} \over 5},{{21} \over 5}} \right)$
D
$\left( {{{72} \over 5}, - {{21} \over 5}} \right)$

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