640 prompts matching "Spot my mistake finding a line's equation"
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Worked Example: Adding two surds that simplify to the same root
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Show All Working: Simplifying a surd expression that contains brackets
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Worked Example: Rationalising a denominator that is a single surd
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Show All Working: Checking a rationalised answer by decimal approximation
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Worked Example: Why multiplying by the conjugate clears the surd
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Show All Working: A conjugate where the surd term comes first
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Worked Example: Reading the symbol used for a binary operation
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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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Show All Working: Showing a set is not closed by a single counter-example
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Worked Example: Testing a*b against b*a for a given rule
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Show All Working: An operation that is associative but not commutative
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Worked Example: Testing whether star distributes over plus
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Show All Working: Using distributivity to simplify an expression
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Show All Working: An element with no inverse under a given operation
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Worked Example: The law for multiplying powers of the same base
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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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Show All Working: Simplifying an expression that mixes the index types
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Worked Example: Writing an index statement as a logarithm
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