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Powers of Complex Numbers (DeMoivre's Theorem) definitions

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이 집합의 용어 (15)

  • Polar Form
    Representation of a complex number using a modulus and an angle, simplifying multiplication and exponentiation.
  • Modulus
    The distance from the origin to a complex number in the complex plane, used as the r value in polar form.
  • Argument
    The angle measured from the positive real axis to the complex number, crucial for polar representation.
  • De Moivre's Theorem
    A shortcut for raising complex numbers in polar form to powers, involving exponentiation of modulus and multiplication of angle.
  • cis
    Abbreviation for cosine plus i times sine of an angle, used to express complex numbers compactly in polar form.
  • Root
    A value that, when raised to a specific power, yields the original complex number; often results in multiple solutions.
  • Cube Root
    A specific root where the exponent is three, producing three distinct complex solutions due to periodicity.
  • Square Root
    A specific root where the exponent is two, resulting in two distinct complex solutions.
  • Theta k
    An angle calculated for each root, using a formula involving division by n and addition of a full rotation times k.
  • Full Rotation
    A complete turn in the complex plane, represented as 360 degrees or 2π radians, used to find all roots.
  • Radians
    A unit for measuring angles, often used in complex number calculations alongside degrees.
  • Integer k
    A variable representing different root solutions, ranging from zero to n minus one in root calculations.
  • Exponent
    A value indicating the power to which a complex number is raised, affecting both modulus and argument.
  • Multiple Solutions
    The phenomenon where root operations on complex numbers yield several distinct answers due to periodicity.
  • Complex Plane
    A two-dimensional space where complex numbers are visualized, with real and imaginary axes.