CGPET 2013 Solved Paper

Section: Mathematics

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Question : 106 of 150

Marks: +1, -0

If

∧

a

and

∧

b

are unit vectors and θ is the angle between them, then sin‌(θ∕2) is equal to

‌|
∧
a
+
∧
b
|
2
‌
∧
a
−
∧
b
2
‌|
∧
a
−
∧
b
|
2
|
∧
a
−
∧
b
|

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