TS EAMCET 2017 Code A Solved Paper

Section: Mathematics
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Question : 57 of 160
 
Marks: +1, -0
If the vectors
−
a
=
⋀
i
+
⋀
j
+
⋀
k
,
−
b
=
⋀
i
−
⋀
j
+2
⋀
k
and
−
c
=x
⋀
i
+(x−2)
⋀
j
−
⋀
k
are coplanar, then x =
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