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Problem
Problem
The value of
n
n
n
so that vectors
2
i
^
+
3
j
^
−
2
k
^
2\hat{i} + 3\hat{j} - 2\hat{k}
2
i
^
+
3
j
^
−
2
k
^
,
5
i
^
+
n
j
^
+
k
^
5\hat{i} + n\hat{j} + \hat{k}
5
i
^
+
n
j
^
+
k
^
and
−
i
^
+
2
j
^
+
3
k
^
-\hat{i} + 2\hat{j} + 3\hat{k}
−
i
^
+
2
j
^
+
3
k
^
may be coplanar, will be a. 18 b. 28 c. 9 d. 36
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