For given sphere center is (3,6,1) Coordinates of one end of diameter of the sphere are (2,3,5). Let the coordinates of the other end of diameter are (α,β,γ) ∴
α+2
2
=3,
β+3
2
=6,
γ+5
2
=1 ⇒α=4,β=9 and γ=−3 ∴ Coordinate of other end of diameter are (4,9,−3)