1,014 prompts matching "Deciding whether a given rule really is a binary operation"
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Practice: The components of a vector given its magnitude and direction
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Spot My Mistake: Drawing a vector as a directed line segment
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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 unit vector in the direction of a displacement
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Worked Example: Finding the unit vector in the direction of a given vector
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Practice: A vector of stated magnitude in a given direction
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WAEC Prep: The distance between two points from their position vectors
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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WAEC Prep: Showing a triangle is right-angled using the dot product
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Quiz: The vector equation of the line through two given points
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Spot My Mistake: The equilibrium condition written in vector form
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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Spot My Mistake: Dividing one complex number by another using the conjugate
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WAEC Prep: The conjugate of a complex number, and how it is written
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WAEC Prep: The locus of a complex number equidistant from two points
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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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WAEC Prep: Solving a quadratic whose discriminant is negative
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WAEC Prep: Why the limit is taken as h tends to nought
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Worked Example: The quotient rule for differentiation
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