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Show that the points A(2 hat i- hat j+ ...

Show that the points `A(2 hat i- hat j+ hat k), B( hat i-3 hat j-5 hat k), C(3 hat i-4 hat j-4 hat k)`are the vertices of a right angled triangle.

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To show that the points \( A(2\hat{i} - \hat{j} + \hat{k}), B(\hat{i} - 3\hat{j} - 5\hat{k}), C(3\hat{i} - 4\hat{j} - 4\hat{k}) \) are the vertices of a right-angled triangle, we will follow these steps: ### Step 1: Find the position vectors of points A, B, and C The position vectors of the points are: - \( \vec{A} = 2\hat{i} - \hat{j} + \hat{k} \) - \( \vec{B} = \hat{i} - 3\hat{j} - 5\hat{k} \) - \( \vec{C} = 3\hat{i} - 4\hat{j} - 4\hat{k} \) ...
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