Select ALL statements that are FALSE about the region 1 less
Select ALL statements that are FALSE about the region 1 less than or equal to x^2 + y^2 + z^2 less than or equal to 25:
(A) It contains the origin.
(B) It contains only points with positive x, y, and z coordinates.
(C) It is between two concentric spheres of radius 1 and 25, centered at the
origin.
(D) It is between two concentric spheres of radius 1 and 5, centered at the
origin.
(A) It contains the origin.
(B) It contains only points with positive x, y, and z coordinates.
(C) It is between two concentric spheres of radius 1 and 25, centered at the
origin.
(D) It is between two concentric spheres of radius 1 and 5, centered at the
origin.
Solution
x^2+y^2+z^2=1 corresponds to a sphere with radius 1 x^2+y^2+z^2=25 corresponds to a sphere with radius 5 1
