Mukesh is preparing for an entrance examination and is anxious. He has a persistent irrational thought that he would not succeed. Explain the therapy that can help him understand and overcome his anxiety.
If vector \( \mathbf{a} = 3 \hat{i} + 2 \hat{j} - \hat{k} \) \text{ and } \( \mathbf{b} = \hat{i} - \hat{j} + \hat{k} \), then which of the following is correct?