1,331 prompts matching "Teach me dividing complex numbers by rationalising with the conjugate"
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Final Revision: Combinations used with the addition and multiplication principles
Act as my WAEC Further Mathematics coach in the last week before the paper. I am in SS 3.
Show All Working: Reading the solutions of a trigonometric equation off a graph
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Practice: The equation of a line through a point with a given gradient
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Worked Example: The equation of a circle with a given centre and radius
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WAEC Prep: The standard deviation of grouped data using an assumed mean
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Quiz: The principle of moments for a body in equilibrium
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WAEC Prep: A couple, and why its moment is the same about every point
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Show All Working: Replacing two parallel forces by a single resultant
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Final Revision: A ladder leaning against a wall, and the moments acting on it
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Show All Working: The time at which two bodies are nearest one another
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WAEC Prep: Limiting equilibrium, with a body on the point of sliding
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Quiz: The velocity of a body in simple harmonic motion at a given displacement
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Spot My Mistake: The time taken to move between two points in simple harmonic motion
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Spot my mistake: Assuming AB and BA give the same matrix
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Spot my mistake: Treating the kilogram and the kilogram weight as the same unit
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Spot my mistake: Assuming moments may only be taken about the pivot and never about another point
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Spot my mistake: Assuming the normal curve meets the horizontal axis at its points of inflexion
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Spot my mistake: Treating any vector with small components as a unit vector
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Spot my mistake: Assuming a quadratic with a negative discriminant has no roots at all
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Spot my mistake: Treating the action and the reaction of Newton's third law as forces acting on the same body
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