OpenStax, Algebra and Trigonometry 2e §10.8 Vectors · Example 6 · Geometry · Vectors in geometry
Performing Scalar Multiplication
Given vector find 3v, and −v.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Algebra and Trigonometry 2e · §10.8 Vectors · Example 6
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