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OpenStudy (rauf):
identify surface by type (paraboloid, ellipsoid, etc.) x^2 + y^2 + 4z^2 = 10
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OpenStudy (anonymous):
Ellipsoid. Do you know why?
OpenStudy (rauf):
how
OpenStudy (rauf):
how we know this is ellipsoid
OpenStudy (anonymous):
All the coefficients are positive and they are not all equal.
OpenStudy (anonymous):
If the coefficients are positive are t all equal, it will be a sphere
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OpenStudy (rauf):
ok.thankx i understand @eliassaab
OpenStudy (anonymous):
YW
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