Section 12.3: Dot Product
Exercise 19
Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.) \(\mathbf{a} = 4\mathbf{i} - 3\mathbf{j} + \mathbf{k}, \mathbf{b} = 2\mathbf{i} - \mathbf{k}\)
Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.) \(\mathbf{a} = 4\mathbf{i} - 3\mathbf{j} + \mathbf{k}, \mathbf{b} = 2\mathbf{i} - \mathbf{k}\)