252 prompts matching "Explain-back: what a matrix inverse actually does"
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Worked Example: Squaring both sides safely when solving a surd equation
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Worked Example: Reading the symbol used for a binary operation
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Worked Example: Testing the even numbers for closure under addition
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Worked Example: Testing a*b against b*a for a given rule
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Worked Example: Testing whether star distributes over plus
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Worked Example: Finding the identity element from a rule such as a*b = a + b - 3
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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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Learn: Why any non-zero number to the power nought is one
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Worked Example: Rewriting a negative index as a fraction
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Learn: Solving an equation by writing both sides to the same base
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Worked Example: Solving an indicial equation where one side must be factorised first
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Learn: The definition of a logarithm as the index
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Worked Example: Writing an index statement as a logarithm
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Learn: The law for the logarithm of a product
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Worked Example: The law for the logarithm of a quotient
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Learn: The change of base formula
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Worked Example: Converting a logarithm to base ten so that tables can be used
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Worked Example: Writing out the terms of a sequence from its nth term
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Worked Example: Finding the common difference of an arithmetic progression
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