Question

T or F? Two vectors are orthogonal if their dot product is 0
T or F? Two vectors are orthogonal if their dot product is 0
@Mathematics

Answer 1

Um, i dont know how to 'tutor' this without just giving the answer, because that is one of the definitions of orthogonal. (the answer is true)

Answer 2

orthogonal means perpendicular to one another, and since the dot prodcut A dot B=|A||B|cos(theta) where theta is the angle between them, if they are orthogonal then |A||B|cos(theta) is 0 because theta=pi/2