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Q:- If (2,3,5) is one end of a diameter of the sphere x 2 +y 2 +z 2 -6x-12y-2z+20=0,then the coordinates of the other end of the diameter are: A. (4,9,-3) B. (4,-3,3) C. (4,3,5) D. (4,3,-3)

Q:- If (2,3,5) is one end of a diameter of the sphere x2+y2+z2-6x-12y-2z+20=0,then the coordinates of the other end of the diameter are:


A. (4,9,-3)


B. (4,-3,3)


C. (4,3,5)


D. (4,3,-3)

Grade:12

1 Answers

Ramesh V
70 Points
11 years ago

the eqn of sphere can be written as

(x-3)2 + (y-6)2 + (z-1)2 = 26

center is ( 3, 6, 1)

as center is mid point, the other end of diameter is (4, 9, -3)

option A

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regards

Ramesh

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