1,324 prompts matching "Why does completing the square work"
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Learn: The magnitude of a three-dimensional vector
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Practice: The magnitude of the sum of two vectors
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Learn: The unit vectors i, j and k
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Learn: Subtracting one vector from another
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Practice: The dot product as the magnitudes times the cosine of the angle
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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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Spot My Mistake: The equilibrium condition written in vector form
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Learn: The real and the imaginary parts of a complex number
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Spot My Mistake: Dividing one complex number by another using the conjugate
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Worked Example: Squaring a complex number
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WAEC Prep: The conjugate of a complex number, and how it is written
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Practice: The sum of a complex number and its conjugate
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Practice: The argument of a complex number in the second or third quadrant
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Practice: The addition of complex numbers shown on an Argand diagram
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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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Learn: The cube roots of unity
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Learn: Choosing between the product rule and the quotient rule
You are my personal SS3 Further Mathematics tutor. Teach me choosing between the product r