Vector Dot and Cross Product Calculations (Jee … | ExamDuo
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Scalar and Vector Products
Hard
Vector Dot and Cross Product Calculations
Let
→
a
=
^
i
+
2
^
j
+
λ
^
k
,
→
b
=
3
^
i
−
5
^
j
−
λ
^
k
,
→
a
⋅
→
c
=
7
,
2
→
b
⋅
→
c
+
43
=
0
,
→
a
×
→
c
=
→
b
×
→
c
. Then
|
→
a
⋅
→
b
|
is equal to
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