Find angle between the vectors `veca=veci+hatj-hatk and vecb=hati+hatj+hatk`.

Find the angle theta between the vectors veca=hati+hatj-hatk and vecb=hati-hatj+hatk

The values of x for which the angle between the vectors veca =xhati - 3hatj-hatk and vecb = 2x hati + x hatj -hatk is acute, and the angle, between the vector vecb and the axis of ordinates is obtuse, are

The vector vec c , directed along the internal bisector of the angle between the vectors vec a = 7 hati - 4 hatj - 4hatk and vecb = -2hati - hatj + 2 hatk " with " |vec c| = 5 sqrt(6), is

Find the area of the parallelogram whose adjacent sides are determined by the vectors veca= hati- hatj+3hatk and vecb= 2 hati-7 hatj+hatk

Find the area of the parallelogram whose adjacent sides are determined by the vectors veca=hati-hatj+3hatk and vecb=2hati-7hatj+hatk

Find the angle between the vectors hati-2hatj+3hatkand3hati-2hatj+hatk