Vector Operations Angle Calculation (Jee Mains) | ExamDuo
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Scalar and Vector Products
Medium
Vector Operations Angle Calculation
Let
→
a
=
a
i
^
i
+
a
2
^
j
+
a
3
^
k
and
→
b
=
b
1
^
i
+
b
2
^
j
+
b
3
^
k
be two vectors such that
|
→
a
|
=
1
;
→
a
⋅
→
b
=
2
and
|
→
b
|
=
4
. If
→
c
=
2
(
→
a
×
→
b
)
−
3
→
b
, then the angle between
→
b
and
→
c
is equal to :
Ask about this question
SELECT ONE OPTION
A
cos
−
1
(
2
√
3
)
B
cos
−
1
(
−
1
√
3
)
C
cos
−
1
(
−
√
3
2
)
D
cos
−
1
(
2
3
)
Check