1,313 prompts matching "IGCSE Additional Maths Y11: Finding the radius from a given sector area — IGCSE"
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Worked Example: The moment of a force about a point on its own line of action
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Explain Back: The units of a moment, and why they are newton metres
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WAEC Prep: The resultant moment of a couple and a force together
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WAEC Prep: The moment of two equal and opposite parallel forces
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WAEC Prep: The total moment of two forces about the same point
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Worked Example: The total moment of three parallel forces about one end
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Learn: The algebraic sum of moments when the senses differ
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WAEC Prep: The triangle of forces and concurrence taken together
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Explain Back: Locating the point of concurrence on a diagram
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Spot My Mistake: Using concurrence to find the direction of an unknown third force
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WAEC Prep: The conditions for a particle under three forces to be in equilibrium
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WAEC Prep: The statement of Lami's theorem
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Worked Example: Matching each force to the sine of the angle opposite it
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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WAEC Prep: The variance of a discrete random variable
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WAEC Prep: A random variable, and the values it may take
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Spot My Mistake: Why the probabilities in a distribution must sum to one
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Learn: The expectation of a discrete random variable
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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WAEC Prep: The probabilities of nought, one and two successes read off an expansion
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