New posts in Vectors

Confusion with vector spaces

Proof of $BAC-CAB$ identity missing step

What is the geometric meaning of this vector equality? $\vec{BC}\cdot\vec{AD}+\vec{CA}\cdot\vec{BD}+\vec{AB}\cdot\vec{CD}=0$

Conditions for this vectors to be linearly dependent

What's the best way to find a perpendicular vector?

Distance between two lines $L_1:\> x+y+z=6,\> x-2z=-5$; $L_2:\> x+2y=3,\> y+2z=3 $

How can I prove that 3 planes are arranged in a triangle-like shape without calculating their intersection lines?

Coordinate proof that the sum of a triangle's angles is $180^\circ$?

Crux problem #33 with vector approach

Guidance requested for vector dot product question.