Two Vector Norms, Coupled

★ 7/10Substitution Cauchy-Schwarz vectors

Problem

Given $|\vec a| = |\vec a + 2\vec b| = 2$ , find the maximum of

\left|2\vec a + \vec b\right| + \left|\vec b\right|.

Answer

Solution

Difficulty	7/10
Topics	Substitution, Cauchy-Schwarz, vectors

Whiteboard

Your sketch is saved only in this browser. To share it, export your drawing as an image (whiteboard menu → Export as → PNG), then upload that image in the comments below.

Discussion

Ask questions, share alternate solutions, and use LaTeX freely.

0 comments

No comments yet.