Learning objective
B2 Use and manipulate surds, including rationalising the denominator.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Pure Mathematics
Subtopic
Surds
Aqa A Level MathematicsPaper 1
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Quick explanation
B2 Use and manipulate surds, including rationalising the denominator
- This point belongs to Pure Mathematics, especially Surds.
- You need to be able to b2 Use and manipulate surds, including rationalising the denominator.
- The key ideas to know are surds and rationalising.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
surdsrationalising
Why it matters
This objective helps connect Surds to exam-style questions, flashcards, and revision notes for Pure Mathematics.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- A1 Understand and use the structure of mathematical proof, proceeding from given assumptions through a series of logical steps to a conclusion; use methods of proof including proof by deduction and proof by exhaustion; use disproof by counter example; use proof by contradiction including proof of the irrationality of sqrt(2), the infinity of primes and application to unfamiliar proofs.
Proof
- B1 Understand and use the laws of indices for all rational exponents.
Laws of indices
- B3 Work with quadratic functions and their graphs; use the discriminant including the conditions for real and repeated roots; complete the square; solve quadratic equations including solving quadratic equations in a function of the unknown.
Quadratic functions
- B4 Solve simultaneous equations in two variables by elimination and by substitution, including one linear and one quadratic equation.
Simultaneous equations
- B5 Solve linear and quadratic inequalities in a single variable and interpret such inequalities graphically, including inequalities with brackets and fractions; express solutions through correct use of and and or, or through set notation; represent linear and quadratic inequalities graphically.
Inequalities