i need a parametric equation of a circle in 3d space that is perpendicular to a vector <a,b,c>. (as t goes up the circle is traced counterclockwise, as viewed from the head of the vector.)(adsbygoogle = window.adsbygoogle || []).push({});

in the form x[t],y[t],z[t]

i know that x^2+y^2+z^2=constant

and that ax+by+cz=0

But i cannot figure out the parametric equation x[t],y[t],z[t] that describes a circle perpendicular to the vector.

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# Need the parametric equation of a circle perpendicular to a vector.

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