A) 2
B) 4
C) \[\sqrt{17}\]
D) \[2\sqrt{13}\]
Correct Answer: C
Solution :
Area of parallelogram \[=\text{ }|\mathbf{a}\times \mathbf{b}|\text{ }=\left| \,\left| \begin{matrix} \mathbf{i} & \mathbf{j} & \mathbf{k} \\ 1 & 0 & -1 \\ 0 & 2 & 3 \\ \end{matrix} \right|\, \right|\] \[=\,|2\mathbf{i}-3\mathbf{j}+2\mathbf{k}|\]\[=\sqrt{4+9+4}=\sqrt{17}\].You need to login to perform this action.
You will be redirected in
3 sec