- #1
Beamsbox
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I have a question in my book that states:
"T or F The natural domain of f(x,y,z) = sqrt(1-x^2-y^2) is a disk of radius 1 centered at the origin in the xy-plane."
This is F as the graph is an infinite solid cylinder. But I can't visualize it. If I let f(x,y,z) be z, and square both sides, I get:
x^2 + y^2 + z^2 = 1 which is the graph of a sphere centered at the origin, right?
Not sure where the 'solid cylinder' comes in...
"T or F The natural domain of f(x,y,z) = sqrt(1-x^2-y^2) is a disk of radius 1 centered at the origin in the xy-plane."
This is F as the graph is an infinite solid cylinder. But I can't visualize it. If I let f(x,y,z) be z, and square both sides, I get:
x^2 + y^2 + z^2 = 1 which is the graph of a sphere centered at the origin, right?
Not sure where the 'solid cylinder' comes in...