Calculus1
8 Online
OpenStudy (jhannybean):
Write the equation of a plane : \[\vec r(u,v) =2\sin(u)\hat i + 3\cos(u)\hat j +v\hat k\] \(0\le v\le 2\)
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OpenStudy (anonymous):
some vector stoof
OpenStudy (dan815):
r_u X r_v
OpenStudy (jhannybean):
\[P_0 = (2,3,0)\]
OpenStudy (dan815):
will give yu normal line <a,b,c>
d=ax+by+cz
OpenStudy (dan815):
plug po in and see what d has to be
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OpenStudy (anonymous):
I can do this but I can't really visualize this haha.
OpenStudy (dan815):
basicalllyy
OpenStudy (jhannybean):
Uhh... vector a.... or \(\vec r_u = <\cos(u) ~ , ~ -\sin(u)~,~0>\)
OpenStudy (dan815):
hm
OpenStudy (jhannybean):
\[\vec b = <0,0,1>\]
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ganeshie8 (ganeshie8):
you're trying to find the tangent plane of given surface at given point ?
OpenStudy (jhannybean):
Im so lazy rn.
OpenStudy (jhannybean):
Yeah.
OpenStudy (dan815):
i know what we find can be the tangent pane, but can u say this whole thing iss a plane
ganeshie8 (ganeshie8):
that whole thing looks like a cylinder to me
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OpenStudy (anonymous):
Dan this is the first and last time you'll hear this, can you draw it out please?
ganeshie8 (ganeshie8):
it is aligning in z axis
OpenStudy (dan815):
its an elliptic cylinder in u,v
OpenStudy (jhannybean):
\[a \times b =\]|dw:1418469986458:dw|