If \( A \) is a symmetric matrix and \( B \) is a skewsymmetrix mat...
If \( A \) is a symmetric matrix and \( B \) is a skewsymmetrix matrix such that \( \mathrm{A}+\mathrm{B}=\left[\begin{array}{cc}2 & 3 \\ 5 & -1\end{array}\right] \), then \( \mathrm{AB} \) is equal to:
(A) \( \left[\begin{array}{cc}-4 & 2 \\ 1 & 4\end{array}\right] \)
(B) \( \left[\begin{array}{cc}-4 & -2 \\ -1 & 4\end{array}\right] \)
(C) \( \left[\begin{array}{cc}4 & -2 \\ -1 & -4\end{array}\right] \)
(D) \( \left[\begin{array}{rr}4 & -2 \\ 1 & -4\end{array}\right] \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions
| 2023-04-13 | In the electrical circuit shown, points \( \mathrm{B} \) and \( \ma... |
| 2023-04-13 | Find the equivalent resistance between \( \mathrm{P} \) and \( \mat... |
| 2023-04-13 | In the electric network shown in figure, use Kirchhoffs rules to ca... |
| 2023-04-13 | In a typical Wheatstone network, the resistance in cyclic order are... |
| 2023-04-13 | If \( A=\left[\begin{array}{cc}\cos \theta & \sin \theta \\ -\s... |
| 2023-04-13 | Find the equivalent resistance of the networks shown in the figure ... |
| 2023-04-13 | If the square matrices A and B are such that \( \mathrm{AB}=\mathrm... |
| 2023-04-13 | In the adjoining network of resistors each of resistance \( r \Omeg... |
| 2023-04-13 | \( \mathrm{n} \) rows each containing \( m \) cells in series, are ... |
| 2023-04-13 | If \( \mathrm{A}, \mathrm{B} \) and \( \mathrm{A}+\mathrm{B} \) are... |
| 2023-04-13 | If \( A \) is a symmetric matrix and \( B \) is a skewsymmetrix mat... |
| 2023-04-13 | Four equal resistors, when connected in series, dissipate a power o... |
| 2023-04-13 | The matrix math xmlns=http://www.w3.org/1998/Math/MathMLmiA/mimo=/m... |
| 2023-04-13 | Two cells, each of emf \( E \) and internal resistance \( r \), are... |
| 2023-04-13 | Let \( a, b, c \in \mathrm{R} \) be all non-zero and satisfy \( a^{... |
| 2023-04-13 | If the length of the filament of a heater is reduced by \( 10 \% \)... |
| 2023-04-13 | A battery of e.m.f. E and internal \( r \) is used in a variable ex... |
| 2023-04-13 | A resistor of resistance \( R \) is connected to a cell of internal... |
| 2023-04-13 | The total number of matrices \( A=\left(\begin{array}{ccc}0 & 2... |
| 2023-04-13 | The current through the resistor in the given circuit is _________.... |
| 2023-04-13 | A battery of emf \( \mathrm{E} \) and internal resistance \( r \) i... |
0