deon3200 deon3200
  • 11-03-2018
  • Mathematics
contestada

Find the trace on the xy-plane of the sphere having center at (−1, 3, −1) and radius 2.

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caylus
caylus caylus
  • 11-03-2018
Hi,

The sphere has for equation :(x+1)²+(y-3)²+(z+1)²=4
The xy plane has for equation z=0
The trace off the sphere in the xyplane is
(x+1)²+(y-3)²=4 (the circle of center (-1,3,0) &nd 2 as radius)


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