755 prompts matching "Give me common mistakes students make in permutations and combinations"
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Show All Working: Evaluating a repeated operation such as a*(b*c)
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Worked Example: Testing the even numbers for closure under addition
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Quiz: Testing the odd numbers for closure under addition
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Explain Back: Testing the integers for closure under division
I have just studied testing the integers for closure under division in my SS1 Further Math
Show All Working: Showing a set is not closed by a single counter-example
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Learn: What it means for an operation to be commutative
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Show All Working: An operation that is associative but not commutative
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Learn: What it means for one operation to distribute over another
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Worked Example: Testing whether star distributes over plus
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Explain Back: Showing distributivity fails by a counter-example
I have just studied showing distributivity fails by a counter-example in my SS1 Further Ma
Show All Working: Using distributivity to simplify an expression
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Learn: What an identity element is
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Learn: Reading index notation, the base and the exponent
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Explain Back: The law for a product raised to a power
I have just studied the law for a product raised to a power in my SS1 Further Mathematics
Spot My Mistake: The law for a quotient raised to a power
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Show All Working: Simplifying an expression with letters and indices
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Worked Example: Rewriting a negative index as a fraction
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Quiz: A negative index on a fraction, and turning it upside down
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Show All Working: Simplifying an expression that mixes the index types
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Worked Example: Solving an indicial equation where one side must be factorised first
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