755 prompts matching "IGCSE Additional Maths Y11: Solving an equation that contains sec x — Show All W"
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Common Mistakes: Rejecting a root that makes a logarithm undefined
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Common Mistakes: The Fibonacci sequence and the rule behind it
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Common Mistakes: An arithmetic progression with a negative common difference
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Worked Example: The alternative sum formula that uses the last term
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Common Mistakes: Inserting a geometric mean between two numbers
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Show All Working: The sum to infinity of a geometric progression, and when it exists
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Common Mistakes: A bouncing ball problem, and the total distance travelled
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Show All Working: Writing the solution of an inequality as a set
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Common Mistakes: A double inequality such as 2 less than x less than 7
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Final Revision: A word problem that leads to a linear inequality
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Learn: Factorising a quadratic before solving the inequality
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Final Revision: A word problem that leads to a quadratic inequality
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Final Revision: Writing the inequalities that describe a shaded region
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Rationalising a denominator with a surd and integer
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Union and intersection of two number sets
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Finding the nth term of an arithmetic sequence
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Recurring decimals as an infinite geometric series
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Area of a triangle from three coordinates
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Gradient as a rate of change interpretation
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Expanding a product of three brackets
I am in SS 1. I'm going to explain expanding a product of three linear brackets, such as (