363 prompts matching "Checking a Cramer's rule solution by substituting back"
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Explain Back: Finding the first term from the sum and the common difference
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Common Mistakes: Proving the sum formula by pairing the terms
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Explain Back: Finding the first term from two given terms of a geometric progression
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Explain Back: The sum of a geometric progression with a negative common ratio
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Spot My Mistake: A compound interest problem modelled by a geometric progression
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WAEC Prep: A population growth problem modelled by a geometric progression
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Quiz: Multiplying both sides by a positive number
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Practice: Reversing the sign when multiplying by a negative number
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Explain Back: Solving a linear inequality that contains brackets
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WAEC Prep: Showing the solution of a linear inequality on a number line
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Quiz: Using a sketch of the parabola to read off the solution
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Spot My Mistake: The solution when the quadratic expression is less than nought
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Explain Back: Solving an inequality such as modulus of 2x minus 1 less than 5
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WAEC Prep: Shading the region defined by a linear inequality
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Common Mistakes: Reading a solution set off a graph
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IGCSE Additional Maths Y10: Set-builder notation for a domain — Explain It Back
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IGCSE Additional Maths Y10: Restricting the domain so that a rule becomes a function — Exam Technique
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IGCSE Additional Maths Y10: Evaluating fg of a given number — Explain It Back
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IGCSE Additional Maths Y10: Showing that f of f inverse of x gives x back — Common Mistakes
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IGCSE Additional Maths Y10: Why the graph of an inverse is a reflection — Explain It Back
I am in SS 1. I have just studied why the graph of an inverse is a reflection for Cambridg