755 prompts matching "The range of values of x for which an expression stays positive"
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Final Revision: Deciding whether a given rule really is a binary operation
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Common Mistakes: Closure on a set of three elements under a stated rule
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Worked Example: Testing a*b against b*a for a given rule
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Final Revision: Why brackets matter when an operation is not associative
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Worked Example: Testing whether star distributes over plus
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Quiz: Left distributivity and right distributivity
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Common Mistakes: Distributivity on a set of three elements
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Worked Example: Finding the identity element from a rule such as a*b = a + b - 3
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WAEC Prep: Applying two index laws inside one expression
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Common Mistakes: Why the index laws need the bases to match
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Quiz: A negative index on a fraction, and turning it upside down
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Worked Example: Solving an indicial equation where one side must be factorised first
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Quiz: An indicial equation that becomes a quadratic in a power
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Spot My Mistake: An indicial equation involving fractional bases
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Common Mistakes: An indicial equation solved by substitution
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Final Revision: Checking an indicial solution by substitution
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Worked Example: Writing an index statement as a logarithm
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Quiz: Writing a logarithm as an index statement
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Final Revision: Proving a logarithmic identity from the laws
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Worked Example: Converting a logarithm to base ten so that tables can be used
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