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Mathematics
Mathematics
Problem
The points with position vectors
60
i
^
+
3
j
^
60\hat{i} + 3\hat{j}
60
i
^
+
3
j
^
,
40
i
^
−
8
j
^
40\hat{i} - 8\hat{j}
40
i
^
−
8
j
^
and
a
i
^
−
52
j
^
a\hat{i} - 52\hat{j}
a
i
^
−
52
j
^
are collinear, if
a
a
a
is equal to a.
−
40
-40
−
40
b.
40
40
40
c.
20
20
20
d. None of these
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