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Find an Equation of the Tangent Plane to the Surface x2+y2+z2=9x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 9

Question 40

Multiple Choice

Find an equation of the tangent plane to the surface x2+y2+z2=9x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 9 at the point (1,2,2) ( 1,2,2 ) .


A) 2x+y+z=42 x + y + z = 4

B) x+y+z=5x + y + z = 5
C) x+2y+2z=9x + 2 y + 2 z = 9
D) x+4y+4z=17x + 4 y + 4 z = 17
E) 2x2+y2+z2=102 x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 10
F) x2+y2+z2=9x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 9

G) x2+2y2+2z2=17x ^ { 2 } + 2 y ^ { 2 } + 2 z ^ { 2 } = 17

H) x2+4y2+4z2=33x ^ { 2 } + 4 y ^ { 2 } + 4 z ^ { 2 } = 33

Correct Answer:

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