If the position vectors of the vertices of a triangle be and

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

If the position vectors of the vertices of a triangle be

2\hat{i} + 4\hat{j} - \hat{k}, 4\hat{i} + 5\hat{j} + \hat{k}

and

3\hat{i} + 6\hat{j} - 3\hat{k}

, then the triangle is (1) right angled (2) isosceles (3) equilateral (4) None of these