SRMJEE 2016 Paper with key

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Question : 99 of 155
 
Marks: +1, -0
If the vectors
→
a
→
b
and are non collinear and the vectors
→
c
=(x−2)
→
a
+
→
b
and
→
d
=(2x+1)
→
a
−
→
b
are collinear then x is equal to
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