Show that, in an inner product space, there cannot be unit vectors u and v with <u, v > < -1.

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Vector Spaces
Section4.2: Vector Spaces
Problem 43E: Prove that in a given vector space V, the zero vector is unique.
Question

Show that, in an inner product space, there cannot be unit vectors u and v with <u, v > < -1.

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