Question:medium
If $(x \;\; 3 \;\; -1)\begin{pmatrix} 1 & 1 & 1 \\ -1 & 0 & 1 \\ 1 & 0 & -1 \end{pmatrix}\begin{pmatrix} 2 \\ 3 \\ 1 \end{pmatrix} = 0$, then the values of $x$ are:
If $(x \;\; 3 \;\; -1)\begin{pmatrix} 1 & 1 & 1 \\ -1 & 0 & 1 \\ 1 & 0 & -1 \end{pmatrix}\begin{pmatrix} 2 \\ 3 \\ 1 \end{pmatrix} = 0$, then the values of $x$ are:
Show Hint
Always multiply matrices stepwise (column first, then row) to avoid mistakes.
Updated On: Apr 24, 2026
- $-2$
- $-\frac{1}{3}$
- $-3$
- $\frac{2}{3}$
- $-\frac{2}{3}$
Show Solution
The Correct Option is D
Solution and Explanation
Was this answer helpful?
0
Top Questions on types of matrices
- If \( A = \begin{vmatrix} 1 & a & a^2 \\ 1 & b & b^2 \\ 1 & c & c^2 \\ \end{vmatrix} \), then the value of \( A \) is:
- BITSAT - 2025
- Mathematics
- types of matrices
- If A=bmatrix1&3
3&2
2&5bmatrix and B=bmatrix-1&-2
0&5
3&1bmatrix and A+B-D=0 (zero matrix), then D matrix will be- BITSAT - 2010
- Mathematics
- types of matrices
- The matrix A²+4A-5I, where I is identity matrix and A=bmatrix1&2
4&-3bmatrix, equals:- BITSAT - 2011
- Mathematics
- types of matrices
- If R(t)= beginpmatrix cos t & sin t
-sin t & cos t endpmatrix, then R(s)R(t) equals- BITSAT - 2021
- Mathematics
- types of matrices
- Want to practice more? Try solving extra ecology questions todayView All Questions
