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Mathematics
Mathematics
Problem
The angle between two vectors
(
2
i
^
+
3
j
^
+
k
^
)
(2\hat{i} + 3\hat{j} + \hat{k})
(
2
i
^
+
3
j
^
+
k
^
)
and
(
−
3
i
^
+
6
k
^
)
(-3\hat{i} + 6\hat{k})
(
−
3
i
^
+
6
k
^
)
is :- (1)
0
∘
0^\circ
0
∘
(2)
45
∘
45^\circ
4
5
∘
(3)
60
∘
60^\circ
6
0
∘
(4)
90
∘
90^\circ
9
0
∘
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