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Determinants — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsDeterminants1 Mark
MCQ
The value of the determinant $\begin{vmatrix}\text{x}&\text{x}+\text{y}&\text{x}+2\text{y}\\\text{x}+2\text{y}&\text{x}&\text{x}+\text{y}\\\text{x}+\text{y}&\text{x}+2\text{y}&\text{x}\end{vmatrix}$ is:
  • A
    $9 x^2(x+y)$
  • ✓
    $9 y^2(x+y)$
  • C
    $3 y^2(x+y)$
  • D
    $7 x^2(x+y)$
✓

Answer

Correct option: B.
$9 y^2(x+y)$

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