For what value of m a vector=2i+3j-6k is perpendicular to b vector 3i-mj+6k. Share with your friends Share 0 Sandeep K. Gupta answered this 4 View Full Answer Yatharth Patel answered this Take a.b (dot product of a&b) equal to zero and solve the question 0 Navratan Jangra answered this do dot product 0