755 prompts matching "Explain permutations and combinations back to me"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Practice: Rationalising a denominator of the form a plus root b over c minus root d
Act as my SS1 Further Mathematics tutor. Give me five practice questions on rationalising
Spot My Mistake: Simplifying the denominator once the conjugate has been used
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Spot My Mistake: Solving a surd equation that leads to a quadratic
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Final Revision: A word problem that leads to an equation in surd form
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Spot My Mistake: A binary operation defined on a set of three elements
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Learn: What closure means for a binary operation
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Common Mistakes: Closure on a set of three elements under a stated rule
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Quiz: Reading commutativity off a symmetrical operation table
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Quiz: Left distributivity and right distributivity
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Practice: Multiplication distributing over addition in ordinary arithmetic
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Show All Working: Using distributivity to simplify an expression
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Common Mistakes: Distributivity on a set of three elements
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Learn: What an identity element is
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Worked Example: Finding the identity element from a rule such as a*b = a + b - 3
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Quiz: Finding the identity element from an operation table
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Practice: Why an identity element must work from both sides
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Spot My Mistake: Finding the inverse of a given element
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Learn: Reading index notation, the base and the exponent
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Worked Example: The law for multiplying powers of the same base
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