756 prompts matching "Solving a cubic that must first be rearranged"
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Spot My Mistake: The equilibrium condition written in vector form
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Worked Example: The powers of i, and the cycle they follow
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Practice: Equating real and imaginary parts to find two unknowns
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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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Practice: Why complex roots of a real quadratic come in conjugate pairs
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Practice: Differentiating sin x and cos x
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Worked Example: The quotient rule for differentiation
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Worked Example: Differentiating a bracket raised to a power
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Learn: Differentiating sin of a multiple of x
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Spot My Mistake: Classifying a stationary point by the second derivative
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Worked Example: Classifying a stationary point by the sign of the gradient either side
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Spot My Mistake: Finding the constant of integration from a given point
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Learn: Integrating a polynomial term by term
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Quiz: Why the power rule fails for the integral of one over x
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Learn: Finding displacement by integrating velocity
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Quiz: Using the initial conditions to fix the constants in a kinematics problem
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Learn: Connected rates of change through the chain rule
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Quiz: A rate of change problem about a vessel filling with water
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Quiz: Choosing which equation of motion to use
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Practice: The sign convention for displacement, velocity and acceleration
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