anonymous
  • anonymous
...
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
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dan815
  • dan815
ok
dan815
  • dan815
|dw:1368544984375:dw|
dan815
  • dan815
what is the x and y component of that rotated vector?

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dan815
  • dan815
imagine that top vector being in a box, and u move that box down
dan815
  • dan815
or rotate the box 90 degrees clockwise which is 270 degrees counter clockwise
dan815
  • dan815
|dw:1368545225970:dw|
dan815
  • dan815
|dw:1368545295412:dw|
anonymous
  • anonymous
So is the matrix you mentioned my final answer?
dan815
  • dan815
nono
dan815
  • dan815
i wanteed you to come up with that matrix but u left in the middle
anonymous
  • anonymous
Sorry my Internet went down.
dan815
  • dan815
do u want to know tho, how we get that matrix
anonymous
  • anonymous
Yeah. :)
dan815
  • dan815
okay
dan815
  • dan815
|dw:1368545978876:dw|
dan815
  • dan815
if our first vector was = a1 i + a2 j what would our rotated vector look like
dan815
  • dan815
|dw:1368546112491:dw|
dan815
  • dan815
that box height is a2, and widht is a1 can u see that
dan815
  • dan815
but when you rorate that box 90 degrees what wud the height and width be
anonymous
  • anonymous
Sort of yeah. I can only see half of your drawings tho so its kind of difficult.
dan815
  • dan815
|dw:1368546212088:dw|
dan815
  • dan815
ok nvm then
dan815
  • dan815
1 sec ill give u best link to understand this stuff and any other question about this stuff
anonymous
  • anonymous
Ok
dan815
  • dan815
ugh its in parts, the question pops up in lecture 1 and then in lecture 3 halfway he talks about it again
anonymous
  • anonymous
I can just see if someone else can help us. If you want.
dan815
  • dan815
http://www.youtube.com/watch?v=9FLItlbBUPY
dan815
  • dan815
i can just give u the answer but
dan815
  • dan815
watch that at 14 mins and ull understand why
dan815
  • dan815
|dw:1368546552294:dw|
dan815
  • dan815
lecture 2 at 14 mins http://www.youtube.com/watch?v=9FLItlbBUPY then watch the lecture 3, at 33:30 time http://www.youtube.com/watch?v=9FLItlbBUPY
dan815
  • dan815
it shud take you about 5 mins to watch that
anonymous
  • anonymous
In that picture, I only see the green matrix and <1, 4>. What's on the other side?
dan815
  • dan815
just watch it.. he draw the same picture
dan815
  • dan815
oh this is what i wrote
dan815
  • dan815
[ 0 1] [-4 ] | [ x ] [-1 0 ] [ 1 ] | [ y ] solve for x and y
dan815
  • dan815
but what sthe point of knowing the answer, just watch those 5 mins of those lectures and undesrstand everything
anonymous
  • anonymous
Oh ok. Can you show me how to solve for x and y? Would that be the answer to my question? I'd rather not watch a video.

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