1,333 prompts matching "Checking an inverse by working the operation both ways"
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WAEC Prep: The shape and the symmetry of the normal curve
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Quiz: The area under the normal curve, and what it represents
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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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WAEC Prep: The z-score of a value that lies below the mean
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WAEC Prep: The standard normal distribution, with mean nought and variance one
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Spot My Mistake: Reading a probability from the standard normal table
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WAEC Prep: Finding the mean or the standard deviation from a given probability
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WAEC Prep: The zero vector, and what it means
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WAEC Prep: A three-dimensional vector parallel to another
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Worked Example: The distance between two points in three dimensions
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Quiz: The direction of a vector as an angle with the x-axis
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WAEC Prep: The distance between two points from their position vectors
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Worked Example: The triangle law of vector addition
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WAEC Prep: The angle between two three-dimensional vectors
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WAEC Prep: Showing a triangle is right-angled using the dot product
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WAEC Prep: Finding the angle between two vectors from their dot product
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WAEC Prep: Converting the vector equation of a line into Cartesian form
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WAEC Prep: The resultant force on a particle given in i and j form
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Explain Back: The resultant of forces given as vectors
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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