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Find the points on the surface x² = 9 + y² = 9 + xz that are closest to the origin.

a) (3, 0, 0)
b) (0, 3, 0)
c) (0, 0, 3)
d) (3, 3, 0)

User Rasheida
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1 Answer

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Final answer:

The equation as provided is incomplete, making it impossible to find the points on the surface closest to the origin. The answer choices imply looking for points along the coordinate axes, but without the correct equation, a definitive answer cannot be given.

Step-by-step explanation:

The question seems to be asking to find the points closest to the origin on a given three-dimensional surface equation, which could be a result of a typo because the equation provided doesn't appear to be solvable as is. Normally, this problem would involve using calculus to find the minimum distance to the origin, optimizing a distance function derived from the surface equation, which should be of the form f(x, y, z) = constant. The answer choices provided suggests looking for points on coordinate axes which are of the form (a, 0, 0), (0, b, 0), (0, 0, c), where a, b, and c are the distances from the origin along the respective axes.Since the original equation appears to be incorrect or incomplete, a direct calculation cannot be performed. However, each of the options (a), (b), and (c) represents the endpoints of a segment on the x, y, or z-axis, respectively, each 9 units away from the origin. Option (d), however, does not lie on any of the axes and is not at the minimum distance to the origin.

Without the correct equation, we can only hypothesize about the correct point(s), which would typically require more information or a corrected equation.To find the points on the surface x² = 9 + y² = 9 + xz that are closest to the origin, we need to find the minimum distance between the origin and any point on the surface. We can use the distance formula to calculate the distance between the origin (0, 0, 0) and any point (x, y, z) on the surface. The distance formula is given by:distance = sqrt(x² + y² + z²)To minimize the distance, we need to minimize the value of x² + y² + z². By substituting theequations given, we have:x² + y² + z² = 9 + y² + 9 + xz = 18 + xzSince we want to minimize this expression, we can set xz = 0 to eliminate the term that depends on x and z. This gives usx² + y² + z² = 18Therefore, the points on the surface that are closest to the origin are the ones that satisfy the equation x² + y² + z² = 18. None of the given options (a) (3, 0, 0), (b) (0, 3, 0), (c) (0, 0, 3), and (d) (3, 3, 0) satisfy this equation, so the answer is none of the above.

User Remona
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