If `a=4hati+2hatj-hatk` and `vecb=5hati+2hatj-3hatk` find the angle between the vectors `veca+vecb` and `veca-vecb`

If veca=3hati+hatj-4hatk and vecb=6hati+5hatj-2hatk find |veca Xvecb|

If veca=5hati-hatj-3hatk and vecb=hati+3hatj-5hatk , then show that the vectors veca+vecb and veca-vecb are perpendicular.

If vecA= hati+2hatj+3hatk, vecB=-hati+hatj + 4hatk and vecC= 3hati-3hatj-12hatk , then find the angle between the vector (vecA+vecB+vecC) and (vecAxx vecB) in degrees.

If veca=hati+2hatj-3hatk and vecb=3hati+hatj+2hatk show that the vectors veca+vecb and veca-vecb are perpendicular to other.

If veca=hati+2hatj-hatk and vecb=3hati+hatj-hatk find a unit vector int direction of veca-vecb .

If veca =hati + hatj-hatk, vecb = - hati + 2hatj + 2hatk and vecc = - hati +2hatj -hatk , then a unit vector normal to the vectors veca + vecb and vecb -vecc , is

If vecA=2hati-2hatj-hatk and vecB=hati+hatj , then : (a) Find angle between vecA and vecB .

If veca=2hati-hatj+2hatk and vecb=-hati+hatj-hatk calculate veca+vecb

If veca = 2hati -3hatj-1hatk and vecb =hati + 4hatj -2hatk " then " veca xx vecb is

If veca=hati+hatj + hatk and vecb = hati - 2 hatj+hatk then find the vector vecc such that veca.vecc =2 and veca xx vecc=vecb .