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Mathematics
Problem
The position vectors of the points A, B and C are
(
2
i
^
+
j
^
−
k
^
)
(2\hat{i} + \hat{j} - \hat{k})
(
2
i
^
+
j
^
−
k
^
)
,
(
3
i
^
−
2
j
^
+
k
^
)
(3\hat{i} - 2\hat{j} + \hat{k})
(
3
i
^
−
2
j
^
+
k
^
)
and
(
i
^
+
4
j
^
−
3
k
^
)
(\hat{i} + 4\hat{j} - 3\hat{k})
(
i
^
+
4
j
^
−
3
k
^
)
respectively. These points. a. form an isosceles triangle b. form a right angled triangle c. are collinear d. form a scalene triangle
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