1,325 prompts matching "use matrices to solve the simultaneous equations 2x+y=8 and x-y=1"
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Worked Example: The distance between two points in three dimensions
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WAEC Prep: A vector of magnitude one in three dimensions
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WAEC Prep: Using a unit vector to write a force of given size
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WAEC Prep: A unit vector, and what makes it a unit
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Practice: A vector of stated magnitude in a given direction
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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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Practice: The dot product as the magnitudes times the cosine of the angle
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WAEC Prep: Showing a triangle is right-angled using the dot product
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Worked Example: Testing two vectors for perpendicularity
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Practice: Deciding whether a point lies on a given line
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WAEC Prep: Three forces in equilibrium written as vectors
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WAEC Prep: The resultant force on a particle given in i and j form
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WAEC Prep: Writing a force as a vector in i and j form
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WAEC Prep: Why the square root of a negative number needs i
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WAEC Prep: Writing the square root of minus nine in terms of i
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Worked Example: The powers of i, and the cycle they follow
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WAEC Prep: The geometric meaning of adding two complex numbers
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Quiz: Subtracting one complex number from another
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Practice: Equating real and imaginary parts to find two unknowns
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