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AP EAPCET 24-Aug-2021 Shift 2 Paper

Section: Mathematics
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Question : 33 of 160
 
Marks: +1, -0
Let
→
a
,
→
b
 and
→
c
 be the three vectors. If |
→
a
|=1,|
→
b
|=17,|
→
c
|=8 and the angle between
→
a
 and
→
b
 is θ and
→
a
×(
→
a
×
→
b
)−
→
c
=0, then cos‌θ+cosec‌θ=
Validate
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