📈ap pre-calculus review

Unit vector

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

A vector with magnitude 1. A unit vector in the same direction as a given nonzero vector is found by scalar multiplying the vector by the reciprocal of its magnitude.

AP course connection

Topic 4.8: 4.8 Vectors

Unit 4