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# Engineering
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As we learnt in  Vector Triple Product (VTP) - - wherein are three vectors.   and   Scalar Product of two vectors (dot product) - - wherein  is the angle between the vectors     Thus     Option 1) This option is correct. Option 2) This option is incorrect. Option 3) This option is incorrect. Option 4) This option is incorrect.
# Engineering
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As we learnt in Scalar Product of two vectors (dot product) - - wherein  is the angle between the vectors Thus let A be position  vector of B is  , D is                                          ..............(i) Also here, Put in (i)     Option 1) This option is correct. Option 2) This option is incorrect. Option 3) This option is incorrect. Option 4) This option is incorrect.
# Engineering
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As we learnt in  Vector Product of two vectors(cross product) - If  and  are two vectors and  is the angle between them , then  - wherein  is unit vector perpendicular to both    and    Scalar Product of two vectors (dot product) - - wherein  is the angle between the vectors   Squaring both sides            Option 1) This option is correct. Option 2) This option is...
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