Which of the following sets of three vectors is mutually perpendicular?

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Which of the following sets of three vectors is mutually perpendicular? (a)

\{(1,2,0), (0,-1,1), (2,1,0)\}

(b)

\{(1,1,0), (1,-1,0), (1,0,1)\}

(c)

\{(2,0,1), (0,1,1), (1,1,0)\}

(d)

\{(1,1,0), (1,-1,0), (0,0,1)\}