So here is the other question. I have to determine the tangent line of a circle, but i have provide the vector equation rather than simply a cartesian equation for the tangent. What would be the simplest way to do it?

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anonymous · Answer

It is the last question on this.

anonymous · Answer

thats what i figured out....

phi · Answer

In 3D there is a tangent plane, so there are an infinite number of tangent lines.
any line in the plane 4x+4y+7y = 81

anonymous · Answer

Its a circle inside the the sphere, so i figured out that plane equation, it is indeed much more easy than just one line, but i need it like so|dw:1395594094907:dw|