Three Dimensional Geometry Part 1

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)