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JEE Advanced 2017 Paper 2 Mathematics Q15
Mathematics
Problem
Read the following paragraph and answer Q.15 and Q.16. Let
O
O
O
be the origin, and
O
X
→
,
O
Y
→
,
O
Z
→
\overrightarrow{OX},\overrightarrow{OY},\overrightarrow{OZ}
O
X
,
O
Y
,
O
Z
be three unit vectors in the directions of the sides
Q
R
→
,
R
P
→
,
P
Q
→
\overrightarrow{QR},\overrightarrow{RP},\overrightarrow{PQ}
QR
,
R
P
,
P
Q
, respectively, of a triangle
P
Q
R
PQR
P
QR
.
∣
O
X
→
×
O
Y
→
∣
=
\left|\overrightarrow{OX}\times\overrightarrow{OY}\right|=
O
X
×
O
Y
=
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