Class 12 Book Solution from S N Dey in Determinant Question No: 6B.3.23
সমাধান করো :
\(\begin{vmatrix} x & 4 & -2 \\[0.3em] 4 & x & -2 \\[0.3em] 4 & -2 & x \end{vmatrix}=0\)
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