If the position vectors of the vertices of a triangle be \[2\mathbf{i}+4\mathbf{j}-\mathbf{k},\] \[4\mathbf{i}+5\mathbf{j}+\mathbf{k}\] and \[3\mathbf{i}+6\mathbf{j}-3\mathbf{k},\] then the triangle is [UPSEAT 2004]

If the position vectors of the vertices of a triangle be \[2\mathbf{i}

1.	If the position vectors of the vertices of a triangle be \[2\mathbf{i}+4\mathbf{j}-\mathbf{k},\] \[4\mathbf{i}+5\mathbf{j}+\mathbf{k}\] and \[3\mathbf{i}+6\mathbf{j}-3\mathbf{k},\] then the triangle is [UPSEAT 2004]
A.	Right angled
B.	Isosceles
C.	Equilateral
D.	Right angled isosceles
Answer» E.

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If the position vectors of the vertices of a triangle be \[2\mathbf{i}+4\mathbf{j}-\mathbf{k},\] \[4\mathbf{i}+5\mathbf{j}+\mathbf{k}\] and \[3\mathbf{i}+6\mathbf{j}-3\mathbf{k},\] then the triangle is [UPSEAT 2004]

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