Identify the unit vector among the following:

MATHEMATICS · Single correct · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

Identify the unit vector among the following: (a) (12,0,12)(\dfrac{1}{2},0,\dfrac{1}{2}) (b) (12,32,0)(\dfrac{1}{2},\dfrac{\sqrt{3}}{2},0) (c) (23,0,13)(\dfrac{2}{3},0,\dfrac{1}{3}) (d) (35,45,45)(\dfrac{3}{5},\dfrac{4}{5},\dfrac{4}{5})

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