What is the product of two vectors if they are parallel or antiparallel ?
The components of $\vec a = 2\hat i + 3\hat j$ along the direction of vector $\left( {\hat i + \hat j} \right)$ is
Find angle between $\vec A = 3\hat i - \hat j + 4\hat k$ and $Z-$ axis
${\vec A }$, ${\vec B }$ and ${\vec C }$ are three non-collinear, non co-planar vectors. What can you say about directin of $\vec A \, \times \,\left( {\vec B \, \times \vec {\,C} } \right)$ ?
Obtain the scalar product of two mutually perpendicular vectors.
Define the scalar product and obtain the magnitude of a vector from it. Mention the direction of scalar product.