- #1
iceblits
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Suppose x(t) is a curve in ℝ^2 satisfying x*x'=0 where * is the dot product. Show that x(t) is a circle.
The hint says find the derivative of ||x(t)||^2 which is zero and doesn't tell me much.
I was hoping for x*x= r, r a constant.
The hint says find the derivative of ||x(t)||^2 which is zero and doesn't tell me much.
I was hoping for x*x= r, r a constant.