Design
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Homework Statement
The Attempt at a Solution
I let D be the center x = DX & a = DA
(x-a) * (x+a)=|x|^2-|a|^2
Dunno what to do with the right side of the equation
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Proving the Dot Product and Norm Theorems
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I let D be the center x = DX & a = DA
(x-a) * (x+a)=|x|^2-|a|^2
Dunno what to do with the right side of the equation
Discussion
Quinzio
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You're just arrived.
The right side is zero, since x = a, and if a dot product of two vectors is zero they are perpendicular.
The right side is zero, since x = a, and if a dot product of two vectors is zero they are perpendicular.
Design
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x = a since both the radius of the circle correct?
Quinzio
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Yes.