1,483 prompts matching "IGCSE-style teach me: The sum of the first n terms of a geometric progression"
Extra quiz: Disjoint sets, and how to tell them apart
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Find my error: Shading a region of a two-set Venn diagram
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Another worked example: Using a Venn diagram with three sets
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More practice: A linear equation with the unknown in the denominator
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Find my error: Writing the equation that represents a direct
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Real-life question: Writing the equation that represents
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Another worked example: Factorising a quadratic whose leading coefficient is not one
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Another worked example: Choosing sensible x values for a linear table
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Extra quiz: Identifying the gradient and intercept from a drawn line
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Another worked example: Using the equal intercept theorem to find a missing length
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Another worked example: Finding an angle with the inverse tangent
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Extra quiz: Combining a trigonometric ratio with Pythagoras'
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Find my error: Finding an angle of elevation from a height and a distance
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Another worked example: Finding a shorter side with Pythagoras
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Another worked example: Identifying natural numbers
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More practice: Using BODMAS to correctly order the four operations
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Find my error: Calculating the square and square root
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Another worked example: Calculating other powers and roots
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Another worked example: Adding, subtracting, multiplying
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Another worked example: Using exponential growth to model
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