KCET 2020 Math Solved Paper

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Question : 17 of 60

Marks: +1, -0

If

→

a

and

→

b

are unit vectors and θ is the angle between

→

a

and

→

b

, then sin‌

θ

2

is

|
→
a
−
→
b
|
|
→
a
+
→
b
|
|
→
a
+
→
b
|
2
|
→
a
−
→
b
|
2

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