1,333 prompts matching "One root twice the other, and what that gives"
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Quiz: The magnitude of the resultant of several coplanar forces
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Explain Back: The forces acting on a body hanging from two strings
I have just studied the forces acting on a body hanging from two strings in my SS3 Further
Spot My Mistake: Drawing the triangle of forces to scale to find an unknown force
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Explain Back: The order in which the forces are drawn round the triangle
I have just studied the order in which the forces are drawn round the triangle in my SS3 F
Explain Back: Why the total moment about any point must be nought
I have just studied why the total moment about any point must be nought in my SS3 Further
Quiz: The coefficient of friction between two surfaces
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Spot My Mistake: Why friction does not depend on the area of contact
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Spot My Mistake: The moment of a force whose line of action is not perpendicular
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Quiz: The point about which the total moment of a set of forces vanishes
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Explain Back: Locating the point of concurrence on a diagram
I have just studied locating the point of concurrence on a diagram in my SS3 Further Mathe
Spot My Mistake: Using concurrence to find the direction of an unknown third force
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Explain Back: The binomial probability formula
I have just studied the binomial probability formula in my SS3 Further Mathematics class.
Spot My Mistake: The probability of exactly r successes in n trials
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Quiz: The situations a Poisson distribution models
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Quiz: The probability in the upper tail of a normal distribution
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WAEC Prep: When a Poisson distribution approximates a binomial one
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Spot My Mistake: When the normal distribution may approximate the binomial
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Quiz: Reading the wording of a question to decide which distribution applies
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WAEC Prep: Two vectors that are equal but drawn in different places
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Quiz: The direction cosines of a vector in three dimensions
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