674 prompts matching "Cramer's rule applied to a pair with fractional coefficients"
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Explain Back: What it means for an operation to be associative
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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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Practice: The law for a power raised to another power
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Explain Back: The law for a product raised to a power
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Show All Working: Simplifying an expression with letters and indices
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Common Mistakes: Why the index laws need the bases to match
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Worked Example: Solving an indicial equation where one side must be factorised first
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Practice: Solving 2 to the power x equals 32
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Show All Working: A word problem that leads to an indicial equation
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Practice: Evaluating log to base 2 of 8
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Show All Working: The common logarithm, to base ten
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Practice: Combining two logarithms into one
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Explain Back: Splitting a single logarithm into several
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Worked Example: Converting a logarithm to base ten so that tables can be used
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Show All Working: Deciding whether a number belongs to a given arithmetic progression
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WAEC Prep: A geometric progression with a negative common ratio
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Worked Example: Which form of the sum formula to use when r is less than one
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Show All Working: The sum to infinity of a geometric progression, and when it exists
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