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Crazy quackulus problems

  1. Mar 11, 2005 #1


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    Ok i need a lil help here.. i got this question im not sure how to do

    Find the equation of the tangent plane to the surface 7z+7=x(e^y)cos(z) at the point (7,0,0). Any know this?
  2. jcsd
  3. Mar 11, 2005 #2


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    The equation of the plane is x=0...(the plane yOz)...

    Compute the normal vector to the surface in the point (0,0,7).Show it is [tex] \vec{i} [/tex].

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