GRE Math Subject Test Sample Question #3

asked 14 years ago

ccanonc
577 ●21 ●31 ●45

updated 13 years ago

Kelvin Li
503 ●5 ●12 ●17

How many dimensions can be present in the intersection of A and B, for A,B both 2D subspaces of R^4?

answered 14 years ago

cswiercz
989 ●11 ●21 ●37 http://www.cswiercz.info/

This question isn't really appropriate for this Sage forum since it is a problem that isn't solved using computation, let alone Sage. It's a theoretical question from linear analysis. You should consult any standard linear algebra textbook on linear spaces/subspaces or ask this question on a math help forum.

link

Comments

If others agree, I will remove the question. From a pedagogical point of view, it is certainly within scope IMHO. BTW I apologize for putting words in your mouth with the Dilbert joke. :-)

ccanonc ( 14 years ago )

http://ask.sagemath.org/upfiles/12874920071741598.jpg

ccanonc ( 14 years ago )

Given two pairs of (normal) vectors in RR^4, can you write a formula for the dimension of the intersection of the subspaces they span, and then use sage to find its minimum value? I'm sure this is not the best way to do this problem, but may be interesting for this forum.

niles ( 14 years ago )

add a comment

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

GRE Math Subject Test Sample Question #3

1 Answer

Comments

Your Answer

Question Tools

Stats

Related questions

GRE Math Subject Test Sample Question #3 savecancel

1 Answer

Comments

Your Answer

Question Tools

Stats

Related questions

GRE Math Subject Test Sample Question #3