Question

If the sum of two unit vectors is also a vector of unit magnitude, the m
of the difference of the two unit vectors is​

Answer 1

Answer:

√3

Explanation:

angle b/w "a" and "b" = 120°

so, angle b/w "a" and "-b" = 60°

|a-b| = 2 cos(60°/2) = 2 cos (30°) = 2× √3/2 = √3