Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §11.1 Vectors and Dot Products, #40 · Multivariable Calculus · Vectors & geometry

By choosing the right vector … in the Schwarz inequality, show that…

By choosing the right vector $W$ in the Schwarz inequality, show that $(V_{1} + V_{2} + V_{3})^{2} \leq 3 (V_{1}^{2} + V_{2}^{2} + V_{3}^{2})$ . What is $W$ ?

~11 minWritten answer · check your work with Lemma

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §11.1 Vectors and Dot Products, #40

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.