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At What Point on the Curve x=t3,y=9t,z=t4x = t ^ { 3 } , y = 9 t , z = t ^ { 4 }

Question 21

Multiple Choice

At what point on the curve x=t3,y=9t,z=t4x = t ^ { 3 } , y = 9 t , z = t ^ { 4 } is the normal plane parallel to the plane 3x+9y4z=4?3 x + 9 y - 4 z = 4 ?


A) (1,3,9) ( - 1 , - 3,9 )
B) (9,18,2) ( 9,18 , - 2 )
C) (1,9,1) ( - 1 , - 9,1 )
D) (18,9,1) ( - 18,9,1 )
E) (9,1,1) ( - 9,1,1 )

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