show that `bara.(barbxxbarc)`is equal in .magnitude to.the ,volume of a parallelppied formed by the three vectors `bara.barb and barc`.

Are the magnitude and direction of (barA - barB) same as that of (barB- barA) ?

The angle between vector and is 60°. What is the ratio of barA.barB|barAxxbarB|.

If veca, vecb and vecc are mutually perpendicular vectors of equal magnitudes, show that the vector veca + vecb + vecc is equally inclined to veca, vecb and vecc.

The magnitudes, of the two vectors A and B are both not equal to zero but barA.barB=0Then the angle between the vectors is (in degrees).

If bara and barb are unit vectors and theta is the angle between them, show that frac(1)(2)[bara-barb] = sin frac(theta)(2)