1,313 prompts matching "Finding n(A union B) using the formula"
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Common Mistakes: Three roots in geometric progression in a cubic
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Explain Back: Solving an inequality that involves a modulus
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WAEC Prep: Writing a solution set in interval notation
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Show All Working: Solving a pair of simultaneous linear inequalities
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Spot My Mistake: Arrangements in which two particular objects must be kept apart
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WAEC Prep: Circular permutations of n objects round a table
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Quiz: Choosing a committee of r people from n
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Practice: Choosing a committee that must contain one particular person
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Explain Back: Choosing a committee with a stated number from each of two groups
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Common Mistakes: Selections in which at least one of a kind must appear
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Final Revision: Proving an identity by working on one side only
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Learn: Solving sin x equals a given value between 0 and 360 degrees
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Explain Back: Solving a quadratic in sin x
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Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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Final Revision: Losing solutions by dividing through by cos x
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WAEC Prep: A phase shift in y equals sin of x minus d
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Common Mistakes: Identifying a conic from a general second-degree equation
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Practice: A uniform beam resting on two supports
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Show All Working: Replacing two parallel forces by a single resultant
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Spot My Mistake: An aeroplane in a cross-wind, and its resultant track
Act as my SS3 Further Mathematics tutor. Work a question on an aeroplane in a cross-wind,