Practicing Success
Practicing Success
CUET Preparation Today
If $\vec{a}= 2\hat{i} -\hat{j} + \hat{k}, \vec{b} =\hat{i} + \hat{j} - 2\hat{k}, \vec{c} =\hat{i} + 3\hat{j} - \hat{k}, $ such that $\vec{a} $ is perpendicular to $\left(\lambda \vec{b} + \vec{c} \right), $ then the value of $\lambda $ is : |
2 3 -3 -2 |
-2 |
