Would request for more detailed explainers into math olympiad problems
7 months ago | 1
Quick question about the third test: At some point you are asked "What is the geometric interpretation of v•w?" (Where v and w are vectors and • is the dot product.) The answers are "(the length of v projected on w)*(the length of w)" and "(the length of w projected on v)*(the length of v)"… and one of them is wrong? Isn't it commutative? The video even spends time showing how the two are equal…
6 months ago | 0
Yo I came back from taking a test on this specific topic where was this video yesterday
7 months ago | 0
3Blue1Brown
Next two linear algebra quizzes. These are from the part of the series that connected the geometric interpretation of dot/cross products to their formulas.
Dot products and duality: beta.retainit.app/game/66018d19802671038f34d0a2
Cross products: beta.retainit.app/game/6626a075555b85d7c3a75a5b
Cross products in the light of linear transformations: beta.retainit.app/game/6627db48ef110d1bc1c114ca
Full series: www.youtube.com/playlist?list...
7 months ago | [YT] | 519