Which of the following is the unit vector perpendicular to `vecA` and `vecB`

Find a unit vector perpendicular to both veca and vecb .

Two vectors vecA and vecB are inclined to each other at an angle theta find a unit vector which is perpendicular to both vecA and vecB

vecA and vecB and vectors expressed as vecA = 2hati + hatj and vecB = hati - hatj Unit vector perpendicular to vecA and vecB is:

vecA and vecB and vectors expressed as vecA = 2hati + hatj and vecB = hati - hatj Unit vector perpendicular to vecA and vecB is:

If veca=hati+hatj-hatk, vecb=hati-hatj+hatk and vecc is a unit vector perpendiculr to the vector veca and coplanar with veca and vecb , then a unit vector vecd perpendicular to both veca and vecc is

If veca =hati + hatj, vecb = hati - hatj + hatk and vecc is a unit vector bot to the vector veca and coplanar with veca and vecb , then a unit vector vecd is perpendicular to both veca and vecc is: