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If $x^{2} + y^{2} = 1$ then the distance from the point $(x, y, \sqrt{1 - x^{2} - y^{2}})$ to the origin is

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Correct option is A

Distance from point x,y,1−x2−y2 to the origin=(x−0)2+(y−0)2+1−x2−y2−02=x2+y2+1−x2−y2=1+1−(1) ∵x2+y2=1 given =1=1

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If x2+y2=1 then the distance from the point x,y,1−x2−y2 to the origin is

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Ready to Test Your Skills?

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If $x^{2} + y^{2} = 1$ then the distance from the point $(x, y, \sqrt{1 - x^{2} - y^{2}})$ to the origin is