911 prompts matching "Showing that a statement is a contradiction"
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Learn: Solving a linear inequality, and reversing the sign on dividing by a negative
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WAEC Prep: Writing a solution set in interval notation
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Learn: The meaning of n factorial, and how to evaluate it
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WAEC Prep: Circular permutations of n objects round a table
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Learn: The meaning of n choose r, and how to evaluate it
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WAEC Prep: Pascal's triangle and the combination numbers in it
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Learn: The Pythagorean identity, sin squared plus cos squared equals one
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WAEC Prep: The three forms of the double angle formula for cosine
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Learn: Solving sin x equals a given value between 0 and 360 degrees
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WAEC Prep: Solving an equation by first applying a double angle formula
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Learn: The shape, period and range of the sine curve
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WAEC Prep: A phase shift in y equals sin of x minus d
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WAEC Prep: Proving two given lines parallel from their gradients
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Learn: The equation of a circle with its centre at the origin
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WAEC Prep: The length of the tangent from an external point
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Learn: The parabola y squared equals 4ax, with its focus and directrix
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WAEC Prep: The hyperbola in standard form, and its asymptotes
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WAEC Prep: The standard deviation of grouped data using an assumed mean
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Learn: The moment of a force about a point, and its units
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Learn: The velocity of one body relative to another
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