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GUJCET 2011 Math Solved Paper
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© examsnet.com
Question : 13
Total: 40
If
|
x
|
=
13
and direction angles of
x
are
cos
−
1
3
13
,
cos
−
1
4
13
and
cos
−
1
12
13
, then find
x
.
3
i
+
4
j
−
12
k
3
i
+
4
j
+
12
k
3
i
−
4
j
+
12
k
3
i
−
4
j
−
12
k
Validate
Solution:
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