Two vectors and satisfy

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

Problem

Two vectors p⃗\vec{p} and q⃗\vec{q} satisfy p⃗⋅q⃗<0\vec{p}\cdot\vec{q}<0. Which of the following best describes the angle between them? (a) Acute (less than 90∘90^\circ) (b) Right (90∘90^\circ) (c) Obtuse (greater than 90∘90^\circ) (d) Cannot be determined from the given information

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