1,314 prompts matching "Practice: Reversing the sign when multiplying by a negative number"
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Quiz: The direction of a vector as an angle with the x-axis
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Practice: A vector of stated magnitude in a given direction
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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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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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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WAEC Prep: Dividing by a purely imaginary number
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WAEC Prep: Multiplying two complex numbers
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Quiz: The product of a complex number and its conjugate
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Quiz: The argument of a complex number
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WAEC Prep: Multiplying two complex numbers in polar form
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Practice: Converting a complex number from polar form back to a plus bi
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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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Quiz: The roots of a complex number shown on an Argand diagram
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WAEC Prep: Solving a quadratic whose discriminant is negative
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Practice: Why complex roots of a real quadratic come in conjugate pairs
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Practice: Differentiating x squared from first principles
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WAEC Prep: Differentiating a polynomial term by term
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Practice: Differentiating sin x and cos x
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