Show that the hyperbolic spiral r u = a, where r2 = x2 +
Chapter 8, Problem 53(choose chapter or problem)
Show that the hyperbolic spiral r u = a, where r2 = x2 + y2, is given parametrically by x = a cos u u , y = a sin u u , for u in 1- _, 02 _ 10, _2.
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