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  • A complex z is of the form a + ib where a and b are real and
  • If
  • In general,
  • Conjugate of a complex number z = a + ib is
  • z = r(cos θ + isin θ ) is the polar form of a complex number, where and θ is the argument of z.
  • A polynomial equation p(x) = 0 of degree n, has n roots.
  • The complex roots of a polynomial equation always occur as a conjugate pair.  
  • The reciprocal of a complex number z is the same as its conjugate
  • The solutions of quadratic equation

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