KCET 2011 Math Solved Paper

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Question : 21 of 60
 
Marks: +1, -0
If
→
a
,
→
b
and
→
c
are noncoplanar, then the value of
→
a
⋅{‌
→
b
×
→
c
3
→
b
â‹…(
→
c
×
→
a
)
}
−
→
b
⋅{‌
→
c
×
→
a
2
→
c
â‹…(
→
a
×
→
b
)
}
is .......................
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