1,333 prompts matching "Why a rational number added to an irrational one stays irrational"
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Final Revision: The zeros of a polynomial and where its graph cuts the x-axis
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Spot My Mistake: The relations between roots and coefficients for a quartic
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Learn: Solving a linear inequality, and reversing the sign on dividing by a negative
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Explain Back: Solving an inequality that involves a modulus
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Final Revision: The region of the plane satisfying a set of linear inequalities
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Spot My Mistake: Arrangements in which two particular objects must be kept apart
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Worked Example: The difference between a permutation and a combination
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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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Final Revision: Combinations used with the addition and multiplication principles
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Quiz: The compound angle formula for sine of A plus B
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Explain Back: The compound angle formula for tan of A plus B
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Spot My Mistake: The double angle formula for sine
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Learn: Solving sin x equals a given value between 0 and 360 degrees
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Worked Example: Solving cos x equals a negative value, and finding both solutions
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Quiz: Solving tan x equals a given value, and the period of the tangent
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Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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Learn: The shape, period and range of the sine curve
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Worked Example: The shape, period and range of the cosine curve
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Final Revision: The graphs of y equals sec x, cosec x and cot x
Act as my WAEC Further Mathematics coach in the last week before the paper. I am in SS 3.