Determinants

Bihar Board Class 12 · Mathematics · 70 past questions

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1. Q45 2021 Set J2021 Set I2018

   If $\omega\ne1,\ \omega^3=1$ and…

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2. Q58 2018

   If $\lambda\in R$ and $\Delta=\begin{vmatrix}a&b\\c&d\end{vmatrix}$ then $\lambda\Delta=$

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3. Q59 2018

   If a, b and c are in A.P. then $\begin{vmatrix}x+1&x+2&x+a\\x+2&x+3&x+b\\x+3&x+4&x+c\end{vmatrix}=$

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4. Q60 2018

   If 7 and 2 are two roots of the equation $\begin{vmatrix}x&3&7\\2&x&2\\7&6&x\end{vmatrix}=0$ then the third…

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5. Q61 2018

   Let A be a non-singular matrix of the order $2 \times 2$ then $|adj A| =$ ..........

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6. Q62 2018

   Find the values of x and y when $\begin{vmatrix}2&3\\y&x\end{vmatrix}$ and…

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7. Q63 2018

   Prove that: $\begin{vmatrix} x+a & b & c \\ a & x+b & c \\ a & b & x+c \end{vmatrix} = x^2(x+a+b+c)$

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