Curriculum
Course: Mathematics — Second Preparatory
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Curriculum

Mathematics — Second Preparatory

Unit 1: Real Numbers

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Unit 2: Algebra

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Unit 3: Geometry

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Unit 4: Statistics

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Text lesson

Operations on Real Numbers

Mathematics — Second Preparatory

Operations on Real Numbers

Removing a root from the denominator

Removing a root from the denominator

  • We write the expression so that the denominator contains no root.
  • If the denominator is √a, we multiply the numerator and the denominator by √a.
  • If the denominator has the form (√a − √b), we multiply by its conjugate (√a + √b), because (√a − √b)(√a + √b) = a − b.
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