If `veca=3hati+2hatj+2hatk,vecb=hati+2hatj-2hatk`. Find a unit vector perpendicular to both `veca+vecb` and `veca-vecb`

If veca=3hati+2hatj+2hatk,vecb=hati+2hatj-2hatk Find veca+vecb and veca-vecb

Let veca=2hati+hatj-3hatk and vecb=4hati+hatj+hatk be two vectors. Find a vector vecc perpendicular to veca and vecb .

Let ' veca=hati+4 hatj+2 hatk, vecb=3 hati-2 hatj+7 hatk' and 'vecc=2 hati-hatj+4 hatk'. Find a vector 'd' 'which is perpendicular to both 'veca' and 'vecb', and 'vecc . vecd=15'

Consider the vectors veca=hati+2hatj-3hatk and vecb=4hati-hatj-2hatk . Find the projections of veca on vecb and vecb on veca .

For given vectors, veca=2 hati-hatj+2 hatk and vecb=-hati+hatj-hatk , find the unit vector in the direction of the vectors veca+vecb

if veca=hati+hatj+hatk, vecb=2 hati-hatj+3 hatk and vecc=hati-2 hatj+hatk , find a unit vector parallel to the vector 2 veca-vecb+3 vecc

Consider the vectors veca=hati-hatj+3hatk and vecb=3hati-7hatj+hatk Find the unit vector in the direction of (veca+vecb)/2