Hi, I am having trouble finding the radius of the this circle. Since we are given that the circle is only in the first octant, I tried using the origin as a point on the circle to find its radius to no success. This was the only thing I could think of to try, I was hoping you could point me in the right direction. Thanks.
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Well, you have the wrong picture in your head. The sphere with center (1,10,3) that passes through the origin looks like this:
where the black dot in the middle is the center of the sphere. As you can see this sphere is much bigger than any sphere with this center that is contained in the first octant. What is the closest point to the black dot that is on the edge of leaving the first octant?
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