1,305 prompts matching "A word problem about seating at a round table"
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Worked Example: Finding the unit vector in the direction of a given vector
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Learn: The unit vectors i, j and k
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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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Worked Example: The position vector of the midpoint of AB
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WAEC Prep: The parallelogram law of vector addition
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WAEC Prep: Adding three vectors in component form
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WAEC Prep: Adding two vectors given in component form
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Worked Example: The triangle law of vector addition
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Learn: Subtracting one vector from another
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WAEC Prep: The dot product of a vector with itself
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WAEC Prep: The dot product used to find the work done by a force
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WAEC Prep: The dot product worked out from components
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Practice: The dot product as the magnitudes times the cosine of the angle
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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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Worked Example: Testing two vectors for perpendicularity
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Learn: The angle between a vector and one of the axes
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Practice: Deciding whether a point lies on a given line
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