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Standard XII
Mathematics
Dot Product of Two Vectors
Question
8
−
[
12
−
(
−
2
×
−
4
(
4
o
f
−
4
)
)
]
=
0
−
132
132
None of these
A
132
B
0
C
None of these
D
−
132
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Solution
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8
−
[
12
−
(
−
2
×
−
4
(
4
o
f
−
4
)
)
]
=
8
−
[
12
−
(
−
2
×
−
4
×
−
16
)
]
=
8
−
[
12
−
(
−
128
)
]
=
8
−
[
12
+
128
]
=
8
−
140
=
−
132
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