If z r(cos u i sin u) and z is not zero, show that Hint: 1/z [1(cos 0 i sin 0)]/[r(cos u
Chapter 13, Problem 77(choose chapter or problem)
If z r(cos u i sin u) and z is not zero, show that Hint: 1/z [1(cos 0 i sin 0)]/[r(cos u i sin u)] 78
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