AP EAPCET 25-Aug-2021 Shift 1 Paper

Section: Mathematics

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Question : 30 of 160

Marks: +1, -0

If ' θ′ is the angle between the unit vectors

→

a

and

→

b

, then sin‌

θ

2

is equal to

|
→
a
−
→
b
→
a
+
→
b
|
|
→
a
+
→
b
|
|
→
a
−
→
b
|
1
2
|
→
a
−
→
b
|

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