3 and 4 .Determinants and Matrices
medium

સમીકરણની સંહતિ $3x + y + 2z = 3,$ $2x - 3y - z = - 3$, $x + 2y + z = 4,$ નું સમાધાન કરે તેવી $x,y,z$ ની કિમત અનુક્રમે . . . . થાય.

A

$2, 1, 5$

B

$1, 1, 1$

C

$1, -2, -1$

D

$1, 2, -1$

Solution

(d) Put the value $(x,\,y,\,z)\, = \,(1,\,2,\, – 1),$ which satisfies the equation. Hence, $(d)$ is correct.

Standard 12
Mathematics

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