OpenStax, Algebra and Trigonometry 2e §10.8 Vectors · Exercise 34 · Geometry · Vectors in geometry

Vectors · Exercise 34

Find the magnitude and direction of the vector, $0 \leq θ < 2 π .$

Given $u = ⟨ - 2, 4 ⟩$ and $v = ⟨ - 3, 1 ⟩,$ calculate $u \cdot v .$

Its source prints no answer for this problem, so there's nothing to check against.

~8 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §10.8 Vectors · Exercise 34

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.