AP EAPCET 19-Aug-2021 Shift 2 Paper

Section: Mathematics
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Question : 30 of 160
 
Marks: +1, -0
If
→
a
and
→
b
are two vectors such that
→
a
.
→
b
|
→
a
|
|
→
b
|
<0
and |
→
a
.
→
b
|
=
|
→
a
×
→
b
|
then the angle between the vectors
→
a
and
→
b
is ______
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