Two vector `vecA` and `vecB` are at right angles to each other, when

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

What is the resultant vectors , when two vectors are at right angles to each other ?

Show that the vectors veca=2veci+3vecj and vecb =6 veci-4vecj are at right angles to each other.

State whether it is true or false: If two vector veca and vecb are perpendicular to each other then veca > vecb.

If |veca+vecb|=|veca-vecb| , then show that vectors veca and vecb are perpendicular to each other.