Q2.13MCQMarks unknownA unit vector perpendicular to both the vectors a=2i−3j+ka=2i-3j+ka=2i−3j+k and b=i+j−2kb=i+j-2kb=i+j−2k is:(A)13(i+j+k)\frac{1}{\sqrt{3}} (i+j+k)31(i+j+k)(B)13(i+j−k)\frac{1}{3} (i+j-k)31(i+j−k)(C)13(i−j−k)\frac{1}{3} (i-j-k)31(i−j−k)(D)13(i+j−k)\frac{1}{\sqrt{3}} (i+j-k)31(i+j−k)Sign in to save attempts.Show answer← PreviousNext →SolutionsDiscussionLoading…Sign in with Google