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The Rectangular Equation for the Parametric Surfaceand x(u,v)=3cosux ( u , v ) = 3 \cos u

Question 30

Multiple Choice

The rectangular equation for the parametric surfaceand x(u,v) =3cosux ( u , v ) = 3 \cos u is


A) x2+y2z2=4x ^ { 2 } + y ^ { 2 } - z ^ { 2 } = 4
B) x2+y2+z2=1x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 1
C) x2+y2=9x ^ { 2 } + y ^ { 2 } = 9
D) x2y2=9x ^ { 2 } - y ^ { 2 } = 9
E) x2+y2=9- x ^ { 2 } + y ^ { 2 } = 9

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