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NDA Math Vector Algebra
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© examsnet.com
Question : 29
Total: 101
If
→
a
and
→
b
are unit vectors and θ is the angle between them, then what is
s
i
n
2
(
θ
2
)
equal to ?
[NDA II 2019]
|
a
+
b
|
2
4
|
a
−
b
|
2
4
|
a
+
b
|
2
2
|
a
−
b
|
2
2
Validate
Solution:
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