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Engineering
101 Views   |

Let      be three non-zero vectors such that no two of them are collinear and

if  is the angle between vectors

then a value of   is:

• Option 1)

• Option 2)

• Option 3)

• Option 4)

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
109 Views   |

In    a    parallelogram ,

• Option 1)

• Option 2)

• Option 3)

• Option 4)

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
172 Views   |

Let be two unit vectors such that

if    then       is equal to:

• Option 1)

• Option 2)

• Option 3)

• Option 4)

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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