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Surds and Indices - Important Formulas | Aptitude

  1. Laws of Indices:
    1. am x an = am + n
    2. amam - n
      an
    3. (am)n = amn
    4. (ab)n = anbn
    5. an=an
      bbn
    6. a0 = 1
  2. Surds:
    Let a be rational number and n be a positive integer such that a(1/n) = a
    Then, a is called a surd of order n.
  3. Laws of Surds:
    1. a = a(1/n)
    2. ab = a x b
    3. =a
      b
    4. (a)n = a
    5. (a)m = am

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