If \( \vec{A} = (2\hat{i} + 3\hat{j} - \hat{k}) \, \text{m} \) and \( \vec{B} = (\hat{i} + 2\hat{j} + 2\hat{k}) \, \text{m} \). The magnitude of component of vector \( \vec{A} \) along vector \( \vec{B} \) will be ________ \( \text{m} \).
Which of the following relations is true for two unit vector \( \vec{A} \) and \( \vec{B} \) making an angle \( \theta \) to each other?
