1,334 prompts matching "Logical reasoning with 'and' versus 'or' in sets"
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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WAEC Prep: Reading the solution off the product of the inverse and the constants
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Worked Example: Checking the solution of three equations by substitution
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WAEC Prep: The newton, and how it is defined
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Worked Example: Using the sine rule on the triangle of forces
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Practice: Why the forces must sum to nought in two perpendicular directions
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Worked Example: Drawing the polygon of forces to scale
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Practice: Finding an unknown force from a closed polygon
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WAEC Prep: Friction, and the direction in which it acts
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Practice: Limiting friction, and the greatest value it can reach
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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
I have just studied the units of a moment, and why they are newton metres in my SS3 Furthe
Practice: Resolving three forces in two perpendicular directions
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Worked Example: Matching each force to the sine of the angle opposite it
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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Worked Example: Finding a particular term of a binomial expansion
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Worked Example: The probability of no events at all in a Poisson distribution
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WAEC Prep: Comparing the mean with the variance of a binomial distribution
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Explain Back: Finding n and p from a given mean and variance
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Explain Back: Testing whether data are Poisson by comparing mean and variance
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