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Properties of Triangle

Section: Mathematics
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Question : 5 of 15
 
Marks: +1, -0
In a triangle PQR, let
→
a
=
→
QR
,
→
b
=
→
RP
 and
→
c
=
→
PQ
. If
|
→
a
|=3,|
→
b
|=4 and
→
a
.(
→
c
−
→
b
)
→
c
.(
→
a
−
→
b
)
=
|
→
a
|
|
→
a
|+|
→
b
|
then the value of |
→
a
×
→
b
|2 is
[JEE Adv 2020 P1]
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