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The vectors ,  and  are coplanar if λ =

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UP TGT Mathematics 2016 Official Paper
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  1. -2
  2. 0
  3. 1
  4. -1

Answer (Detailed Solution Below)

Option 1 : -2
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Detailed Solution

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Concept used:

a, b, and c vectors are coplanar when 

Calculation:

∴ λ = - 2

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