Why do mathematicians use i, j, and k to represent unit vectors in ...
Jun 4, 2009 · axb=-bxa, why?Because there is no logical way they should go so we just defined AxB as -BxA and it follows the right hand rule in a right handed coordinate system. The cross …
linear algebra - Is |AxB| = |A||B|sin (v) a theorem or a definition ...
Is |AxB| = |A||B|sin (v) a theorem or a definition? Ask Question Asked 11 years, 10 months ago Modified 11 years, 10 months ago
Applying Vector Cross Product Properties for (AxB).(CxD) Calculation
May 4, 2010 · Applying Vector Cross Product Properties for (AxB). (CxD) Calculation Saladsamurai May 4, 2010 May 4, 2010 #1
Power sets and Cartesian products. - Physics Forums
Feb 14, 2014 · The easiest way to state that without all of the work I just did seems to be that P (AxB) creates sets of sets, whearas P (A)xP (B) creates pairs of sets or something along those …
Solving $y=ax^ {b}$ with logarithms - Mathematics Stack Exchange
Feb 18, 2020 · (+1) For nice approach. I've used this a lot in class (when I used to teach), motivating it by saying something to the effect that since subtracting equations works when …
Is A x B equal to B x A if and only if A equals B? - Physics Forums
Apr 17, 2007 · To prove two sets are equal, you want to prove every element of one is an element of the other. Start with your assumption AxB=BxA. Pick any x in A and any y in B. Then (x,y) is …
Understanding Triple Scalar Product and Its Properties: Explained ...
Jun 19, 2013 · I understand the second point and why that's true, what I don't understand is why a. (bxc) = b. (cxa) = c. (axb) is true If I name any 3 vectors a b and c would this be true?
Cross Product of Parallel Vectors is the zero vector (why?)
Sep 3, 2015 · The discussion centers on why the cross product of two parallel vectors results in the zero vector. It is explained that the mathematical definition of the cross product involves …
Curl of Cross Product of Two Vectors - Mathematics Stack Exchange
Feb 8, 2016 · It merely sounds to me that you're unfamiliar with vector calculus versions of the product rule, but they are no more exotic than the single-variable version and follow directly …
Is the Vector Equation AxB=AxC Only True When A=0 or B=C?
Dec 14, 2013 · True or False, if AxB = AxC then either A=0 or B=C. A, B, and C are vectors and I thought this statement would be true. However the answer key says it is not. Why?