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Unformatted text preview: OF THE COMPLEX NUMBERS = z if give length and angle  can specify any point z OR if you give x and y  z  = r = sqrt (x^2 + y^2) the length of the vector is called the modules or absolute value of z the angle between the positive x real axis and the vector is called the argument of the complex number fi(z)pi < fi (z) < pi x y find angle  fi = ? sub in y = 2 y = 4 cos (pi/6) + 4 sin (pi/6) *i GO LOOK BACK AT LINEAR ALGEBRA NOTES TO COMPARE!...
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 Winter '07
 MUNTEANU
 Calculus

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