AP and TS EAMCET Engineering Model Paper 1

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Question : 17 of 160
 
Marks: +1, -0
If |
−
a
|
=
|
−
b
|=
|
−
c
|=1,
−
a
.
−
b
=
−
b
.
−
c
=.
−
c
.
−
a
=
1
2
,
then [
−
a
×
−
b
−
b
×
−
c
−
c
×
−
a
]
=
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