The equation vector |r|^2 - r(2i + 4j - 2k) - 10 = 0 represents a (A) Plane (B) Sphere of radius 4

Question 1

The equation vector |r|2 - r(2i + 4j - 2k) - 10 = 0 represents a

(A) Plane

(B) Sphere of radius 4

(C) Sphere of radius 3

(D) of these

Question 2

The given equation is

which is the equation of the sphere whose centre is (1, 2 -1) and radius = √(1 + 4 + 1 + 10) = 4

kratos · Answer 1 · 2021-03-14T10:24:12+0000

The given equation is

which is the equation of the sphere whose centre is (1, 2 -1) and radius = √(1 + 4 + 1 + 10) = 4

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