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Rationalising the Denominator

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7.5Rationalising the Denominator


In this Math video tutorial on Powers and Roots we look into the field of Rationalising the Denominator and cover the following points:

  • How to multiply brackets containing surds?
  • How to use special algebraic identities to write expressions containing surds in a simple way?
  • What does 'rationalising the denominator' mean?
  • How to rationalise the denominator of a fraction if it contains only a surd and nothing else?
  • How to rationalise the denominator of a fraction if it contains only a surd multiplied by a number.
  • How to rationalise the denominator of a fraction if it contains a binomial?
  • How to rationalise the denominator when an entire fraction is inside a root?

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  1. Video Tutorial Feedback. Helps other - Leave a rating for this video tutorial (see below)
  2. Powers and Roots Math tutorial: Rationalising the Denominator. Read the Rationalising the Denominator math tutorial and build your math knowledge of Powers and Roots
  3. Powers and Roots Revision Notes: Rationalising the Denominator. Print the notes so you can revise the key points covered in the math tutorial for Rationalising the Denominator
  4. Powers and Roots Practice Questions: Rationalising the Denominator. Test and improve your knowledge of Rationalising the Denominator with example questins and answers
  5. Check your calculations for Powers and Roots questions with our excellent Powers and Roots calculators which contain full equations and calculations clearly displayed line by line. See the Powers and Roots Calculators by iCalculator™ below.
  6. Continuing learning powers and roots - read our next math tutorial: Indices

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